Solve the problem.The function A described by A(r) = 4?r2 gives the surface area of a sphere with radius r. Find the area when the radius is 1 in.
A. 37.7 in.2
B. 3.14 in.2
C. 4 in.2
D. 12.57 in.2
Answer: D
Mathematics
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Solve.The price of a shirt was reduced from $58.10 to $34.86 . What was the percent of decrease in the price?
A. 40% B. 41% C. 42% D. 4%
Mathematics
Let U = {all soda pops}; A = {all diet soda pops}; 
and 
Describe the given set in words.A' ? C
A. All diet soda pops and all soda pops in cans B. All non-diet soda pops and all soda pops in cans C. All diet soda pops in cans D. All non-diet soda pops in cans
Mathematics
Solve the equation.8 + 7y = 8y
A. 8 B. 7 C. -7 D. -8
Mathematics
Multiply using the distributive property.10(x - 2y + 8z)
A. 10x - 20y + 8z B. 10x - 12y + 18z C. x - 20y + 80z D. 10x - 20y + 80z
Mathematics