Solve the problem. Use 3.14 for ?, if necessary.A rubber ice-hockey puck has a 3.1 inch diameter. What is the area of its circular surface? Round to the nearest tenth, if necessary.
A. 30.2 sq in.
B. 3.8 sq in.
C. 9.7 sq in.
D. 7.5 sq in.
Answer: D
Mathematics
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If a woman making $37,000 a year receives a cost-of-living increase of 2.2%, how much is her raise?$__________
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the product of the given binomial and its conjugate.
+ 
A. 4
B. 4
C. 4 - 2
D. 8
Mathematics
Simplify the expression. Assume that all variables are positive.
? 
A. x4/25
B. x
C. x4/5
D. 
Mathematics
Solve the problem.Your cellular phone contract calls for a flat monthly service charge of $12.95 plus $0.12 per minute for calls within a certain area to which you limit your calls. The table shows some cost data for your use of the phone.
Do the data represent a linear function?
A. No B. Yes
Mathematics