Midterm Exam: Thursday, March 14

Do not wait until the last minute to start the assignment! It’s best to get an early start and work on it in several steps. Do not hesitate to ask for help before the assignment is due! BB’s office hours are on Tuesdays and Thursdays 10:30-11:30 and 12:45-1:30 in Science 130/132 or by arrangement. Dustin’s office hours are on Mondays and Wednesdays 11:30-1:00 in Science 130/132. Email also works at wbriggs@math.cudenver.edu and dstewart@math.cudenver.edu.

Assignments must be either typed or hand-written neatly; in the latter case, it is safest to work in pencil. You may use a word processor and write equations and calculations by hand.
Assignments must be on clean sheets of paper (lined paper is often easier), not torn from a notebook.
Assignments must include all steps that lead to the final answer. Solutions that require discussion must be written in complete sentences with perfect spelling and grammar.

1. Please read Unit 3B.

2. Please do the following exercises. This is a minimum recommended dose of exercises. You should work more exercises if you have not mastered the concepts.

Unit 3B: 14, 28, 32, 48.

3. (Required) Practice problems for percentages.

a. Suppose that your annual salary after taxes is $44,500 and that you are in a 28% tax bracket. What is you annual salary before taxes?

b. Suppose that your annual salary before taxes is $52,500 and that you are in a 28% tax bracket. What is you annual salary after taxes?

c. Complete the following sentence: One mile is _____% larger than one kilometer.

d. Yesterday, the stock market rose 4.5% to close at 8664. Question: What was the value of the stock market at the beginning of the day?

Just for Fun:

Three boxes are labeled APPLES, ORANGES and APPLES AND ORANGES. Each label is incorrect. Can you select one fruit from one box and determine the correct labels?