Multiply as indicated.
? 
A. 
B. 
C. 
D. 6x
Answer: D
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Solve the problem.The number of quarters needed to double an investment when a lump sum is invested at 4%, compounded quarterly, is given by n = 
. In how many years will the investment double, to the nearest tenth of a year?
A. 17.4 yr B. 69.7 yr C. 8.7 yr D. 34.8 yr
Factor by grouping.2a3 - 2a2 + 14a - 14
A. 2(a + 1)(a2 - 7) B. 2(a - 1)(a2 + 7) C. (2a - 1)(a2 + 7) D. 2(a2 - 1)(a + 7)
I visited a beautiful flower garden yesterday and counted exactly 50 flowers. Each flower was either white or orange, and the flowers were not all the same color. My friend made the following observation: No matter which two flowers you might have picked, at least one was bound to be white. From this can you determine how many were white and how many were orange? ?
A. 1 orange flower, 49 white flower(s) B. 1 white flower, 49 orange flower(s) C. 32 orange flower(s), 18 white flower(s) D. 24 orange flower(s), 26 white flower(s) E. 26 orange flower(s), 24 white flower(s)
Solve.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 39 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 5
mph
B. 4
mph
C. 8
mph
D. 7
mph