Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.A sphere with diameter 7 m
A. 179.5 m3
B. 51.3 m3
C. 1436.0 m3
D. 101.0 m3
Answer: A
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Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?a = 50 ft
A. 7.6 ft B. 8 ft C. 8.2 ft D. 7.3 ft
Find the perimeter of the triangle or rectangle as indicated.Find the perimeter of the triangle.
A. P = 27
ft
B. P = 27
ft
C. P = 77
ft
D. P = 27
ft
Perform the indicated operation(s). Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Solve the problem.The graph models the monthly average temperature y in degrees Fahrenheit for a city in the United States, where x is the month.
Find and interpret the amplitude.
A. The amplitude is 28 and represents the temperature range. B. The amplitude is 56 and represents half of the temperature range. C. The amplitude is 59 and represents the midpoint of the monthly average temperatures. D. The amplitude is 28 and represents half of the temperature range.