Multiply.9 ? 9
A. 90
B. 72
C. 18
D. 81
Answer: D
Mathematics
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Add: – 12 + 12
A. 0 B. 24 C. – 24 D. 20
Mathematics
Solve the problem.A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 inches by 30 inches by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a function of x.
A. V(x) = x(12 - 2x)(30 - 2x) B. V(x) = (12 - 2x)(30 - 2x) C. V(x) = (12 - x)(30 - x) D. V(x) = x(12 - x)(30 - x)
Mathematics
Use a percent equation to solve the percent problem.11 is what percent of 25?
A. 44% B. 0.44% C. 4.4% D. 4400%
Mathematics
Find the GCF.162, 108, and 486
A. 18 B. 2 C. 50 D. 54
Mathematics