Add or subtract as indicated. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: A
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Solve.Martha can rake the leaves in her yard in 4 hours. Her younger brother can do the job in 5 hours. How long will it take them to do the job if they work together?
A. 20 hr
B. 
hr
C. 5 hr
D. 
hr
Find each product.(n - 13)(n + 13)
A. n2 - 26n - 169 B. n2 - 26n + 169 C. n2 - 26 D. n2 - 169
Find the area under the normal curve for the condition.Find the percent of the area under the curve between the mean and 3.01 standard deviations from the mean.
A. 50.1% B. 49.9% C. 99.9% D. 49.7%
A committee consists of six members (A, B, C, D, E, and F). A has veto power; B, C, D, and E each have one vote. F is a nonvoting member. For a motion to pass it must have the support of A plus at least two additional voting members.Which are the critical players in the coalition {A, B, D}?
A. A only B. B only C. A, B, and D D. D only E. none of these