Solve.A circular firepit has a diameter of 27 inches. Approximate the circumference of this firepit and of a firepit whose diameter is doubled. (Use 3.14 for ?.)
A. 169.56 in. and 339.12 in.
B. 84.78 in. and 339.12 in.
C. 84.78 in. and 169.56 in
D. 21.33 in. and 84.78 in.
Answer: C
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Solve the problem.How much will it cost to carpet a rectangular room measuring 
by 
if carpeting costs $28.70 per square meter?
A. $11,939.20 B. $1664.60 C. $832.30 D. $5969.60
Write the quotients with positive exponents.
A. 
B. 
C. -3x4
D. -3x10
Find the area of the figure. Use 3.14 for ?.
A. 380.52 ft2 B. 326.52 ft2 C. 383.04 ft2 D. Not enough data
Solve the problem.The data below represent the average monthly cost of natural gas in an Oregon home. 
Above is the graph of 45.05 sin x superimposed over a scatter diagram of the data. Find the sinusoidal function of the form 
which best fits the data.
A. y = 45.05 sin 
+ 21.20
B. y = 45.05 sin 
+ 21.20
C. y = 45.05 sin 
+ 66.25
D. y = 45.05 sin 
+ 66.25