Simplify the expression. Assume that all variables are positive when they appear.
A. 27
B. ±9
C. 81
D. -9
Answer: D
Mathematics
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Solve. 3x4 = 9x3
A. 0, 3 B. 3, 3 C. 0, -3 D. -3, 3
Mathematics
Solve the problem.After a person stops pedaling a bicycle, the wheel rotates 470 times the first minute. Each subsequent minute, it rotates 3/4 as many times as in the previous minute. How many times will the wheel rotate before coming to a complete stop?
A. 1880 rotations B. 3760 rotations C. 626.7 rotations D. 3290 rotations
Mathematics
Multiply. Simplify if possible.
? 
A. 
B. 1
C. 
D. 
Mathematics
Solve.Jackie and her friend Warren ran for an open position on the board of directors of their favorite organization. Jackie received four times the votes that Warren received. There were 200 ballots cast. How many votes did Jackie receive?
A. 160 votes B. 152 votes C. 40 votes D. 32 votes
Mathematics