Solve.The amount of water used to take a shower varies directly as the amount of time that the shower is in use. A shower lasting 20 minutes requires 10 gallons of water. Find the amount of water used in a shower lasting 4 minutes.
A. 50 gallons
B. 8 gallons
C. 2 gallons
D. 2.5 gallons
Answer: C
Mathematics
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Simplify the expression. Assume all variables represent nonzero real numbers.(x4)3
A. x7 B. 3x4 C. x12 D. 12x
Mathematics
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.f(x) = x2 - 36
A. x = -6, x = 6 B. x = -1,296, x = 1,296 C. x = -6 D. x = 6
Mathematics
Find the limit if it exists. 
What will be an ideal response?
Mathematics
Solve.
= -7
A. 
B. 
C. 
D. ?
Mathematics