Add or subtract as indicated. Assume all variables represent non-negative real numbers.11x
+ 11x
A. 22x
B. 121
C. 11x
D. 
Answer: A
Mathematics
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Solve.It takes 11 hours for 6 people to paint a house. How long will it take 3 people to do the job?
A. 5.5 hr B. 5.2 hr C. 19.8 hr D. 22 hr
Mathematics
Express the statement as an equation involving the indicated variables.The volume V of a sphere is 
times ? times the cube of the radius r.
A. V = 
?r
B. V = 
?r3
C. V = 
?r2
D. V = 
? 
Mathematics
Perform the indicated operation and write the answer in lowest terms. 
÷ 
A. 
B. 
C. 
D. 
Mathematics
Perform the operations indicated.4x - 2(5x2 - 3x + 2) + (8x2 + 4x - 1)
A. -2x2 + 5x - 3 B. 18x2 + 14x + 5 C. 2x2 + 10x - 5 D. -2x2 + 14x - 5
Mathematics