**[tippy title=”Problems 1-4″]Problems 1-4**

There are many problems throughout the text labeled IN YOUR OWN WORDS. Just relax; do not be afraid to give your opinion. For the most part, these questions do not have “right” or “wrong” answers. You should spend about five minutes in answering each of these questions.[/tippy]

**[tippy title=”Problems 5-14″]Problems 5-14**

These problems are designed to help you estimate financial problems. Don’t be afraid to guess, check, and then revise, if necessary.[/tippy]

**[tippy title=”Problems 15-18″]Problems 15-18**

Use the formula *I = Prt*. For each problem identify *P*, the present

value; *r*, the annual rate; and *t*, the time (in years). See Example 1.[/tippy]

**[tippy title=”Problems 19-24″]Problems 19-24**

Use the formula *A = P*(1 + *rt*) for **Problem 19 **(see Example 5); *A = P*(1 + *r/n*)^{nt} for **Problems 20-23** (see Example 8); and *I = Pe ^{rt}* for

**Problem 24**(see Example 9).[/tippy]

**[tippy title=”Problems 25-28″]Problems 25-28**

For **Problem 25**, solve *A= P*(1 + *rt*) for *P*, and then fill in the given values.

For **Problems 26-27**, use the present value formula; see Example 12.

For **Problem 28**, solve *A = Pe ^{rt}* for

*P*, and then fill in the given values.[/tippy]

**[tippy title=”Problems 29-30″]Problems 29-30**

For parts **a-e**, see Example 8;

For part **f**, calculate *t* as the number of minutes in a year.

Finally, for part **h**, see Example 5.[/tippy]

**[tippy title=”Problems 31-32″]Problems 31-32**

Use the simple interest formula with t a fraction; see Example 4.[/tippy]

**[tippy title=”Problems 33-36″]Problems 33-36**

Use the future value formula for simple interest; see Example 7.[/tippy]

**[tippy title=”Problems 37-38″]Problems 37-38**

Use the future value formula for continuous compounding; see Example 11.[/tippy]

**[tippy title=”Problems 39-40″]Problems 39-40**

Use the future value formula for continuous compounding.[/tippy]

**[tippy title=”Problems 41-44″]Problems 41-44**

Use the formula *I* = *A – P* to find the amount of interest.[/tippy]

**[tippy title=”Problems 44-45″]Problems 44-45**

Use the future value formula for continuous compounding for inflation; see Example 11.[/tippy]

**[tippy title=”Problem 47″]Problem 47**

Use the present value formula; see Example 11. [/tippy]

**[tippy title=”Problem 48″]Problem 48**

Use *I = Prt* and solve for *P* before solving.[/tippy]

**[tippy title=”Problem 49″]Problem 49**

See Example 11.[/tippy]

**[tippy title=”Problem 50″]Problem 50**

See Example 13.[/tippy]

**[tippy title=”Problem 51″]Problem 51**

Use *I = Prt* and solve for *P* before solving.[/tippy]

### Note: Homework Hints are given only for the Level 1 and Level 2 problems.

However, as you go through the book be sure you look at all the examples in the text. If you need hints for the Level 3 problems, check some sources for help on the internet (see the LINKS for that particular section. As a last resort, you can call the author at (707) 829-0606.

On the other hand, the problems designated “Problem Solving” generally require techniques that do not have textbook examples.

There are many sources for homework help on the internet.

**Algebra.help**

Here is a site where technology meets mathematics. You can search a particular topic or choose lessons, calculators, worksheets for extra practice or other resources.

**http://www.algebrahelp.com/**

**Ask Dr. Math**

Dr. Math is a registered trademark. This is an excellent site at which you can search to see if your question has been previously asked, or you can send your question directly to Dr. Math to receive an answer.

**http://mathforum.org/dr.math/**

**Quick Math**

This site provides online graphing calculators. This is especially useful if you do not have your own calculator.

**http://www.quickmath.com/**

**The Math Forum** @ Drexel

This site provides an internet mathematics library that can help if you need extra help. For additional homework help at this site, click one of the links in the right-hand column.

**http://mathforum.org/**