Solve the problem.Stevie bought a stereo for $275 and put it on sale at his store at a 50% (or 0.50) markup rate. What was the retail price of the stereo?
A. $550.00
B. $312.50
C. $375.00
D. $412.50
Answer: D
Mathematics
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Answer the question.Choose the equivalent form of the given formula for area of a regular polygon: A = 
nsa.
A. a = 
B. a = 
C. S = 
D. s = 
Mathematics
Sketch the graph of the function. Use the graph to find the value of the requested quantity.f(x) = 
; 
f(x)
A. 1 B. does not exist C. 4 D. 2
Mathematics
Simplify the expression. If the expression contains any variables, assume that they represent positive real numbers. Write your answer with only positive exponents.
A. x10
B. x7
C. x25
D. 
Mathematics
Find the common ratio, r, for the geometric sequence.1, -3, 9, -27, 81, . . .
A. 3 B. -3 C. 81 D. -4
Mathematics