Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 
- 
A. -7
B. 9x
C. -7x
D. -7x
Answer: C
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For the given expression y', find y'' and sketch the general shape of the graph of y = f(x). y' = 
- 5
A. 
B. 
C. 
D. 
Solve the problem.100 employees of a company are asked how they get to work and whether they work full time or part time. The figure below shows the results. If one of the 100 employees is randomly selected, find the probability that the person does not work full time.
1. Public transportation: 10 full time, 7 part time2. Bicycle: 3 full time, 5 part time3. Drive alone: 32 full time, 27 part time4. Carpool: 10 full time, 6 part time
A. 0.55 B. 0.45 C. 0.40 D. 0.27
Answer the question or solve the problem.If b < 0, is it true that b2 > b? Explain.
What will be an ideal response?
Find the measure of the unknown angle in the pair of supplementary angles.
Find the measure of ?z.
A. 133° B. 143° C. 137° D. 43°