Find the mean. Round to the nearest tenth unless otherwise stated.Grocery expenses for the past six months: , , , , , 

style="vertical-align: -4.0px;" />.Round to the nearest cent.

A. $84.97
B. $72.97
C. $70.81
D. $106.22

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Answer: C

Mathematics

Perform the indicated operation without the use of a calculator and express each answer in decimal notation.

A. 0.00142857 B. 700 C. 100 D. 0.07

Write the vertex form of the equation of the parabola shown in the given graph. Assume a = ±1.

A. y = -(x + 1)2 - 1 B. y = -(x - 1)2 + 1 C. y = -(x + 1)2 + 1 D. y = (x + 1)2 + 1

Use a proportion to solve the problem.Jim drove 216 miles in 6 hours. If he can keep the same pace, how long will it take him to drive 864 miles?

A. 1296 hours B. 48 hours C. 24 hours D. 34 hours

Perform the indicated operation and simplify. + 

A.
B.  
C.  
D.