Provide an appropriate response.The cost of a 4 × 4 × 8-cedar fence post went from $4.82 to $5.17. What was the rate of increase?
A. 6.8%
B. 7.3%
C. 107.3%
D. 93.2%
Answer: B
Mathematics
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Write the standard form of the equation of the circle with radius r and center (h, k).r = 4; (h, k) = (0, 9)
A. x2 + (y + 9)2 = 4 B. (x - 9)2 + y2 = 16 C. (x + 9)2 + y2 = 16 D. x2 + (y - 9)2 = 16
Mathematics
Solve the problem.The sales of a mature product (one which has passed its peak) are given by the function 
where t is time in years. Find the sales after 5 years if 
and 
A. 57,393 B. 21,114 C. 25,788 D. 12,894
Mathematics
Write an expression for the perimeter in simplest form.
A. 2x + 8 B. 8x + 32 C. 4x + 16 D. x2 + 8x
Mathematics
Solve.A tank is in the shape of a cylinder 4 feet tall and 8 feet in radius. Find the exact surface area of the tank.
A. 96? sq ft B. 192? sq ft C. 24? sq ft D. 256? sq ft
Mathematics