Find the area of the shaded regions. Use ? ? 3.14 and round to the nearest tenth.
A. Not enough data
B. 574.8 in.2
C. 956.3 in.2
D. 829.2 in.2
Answer: D
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Solve the problem.The temperature at the South Pole was -42° at 8 A.M. At 3 P.M., it was 36°. By how many degrees did the temperature rise?
A. 78° B. -78° C. 6° D. -6°
Suppose that you roll two dice. You will be paid $20 if you roll a double. You will not receive anything for any other outcome. How much should you be willing to pay for the privilege of rolling the dice? Please round your answer to the nearest cent. ? $__________
Fill in the blank(s) with the appropriate word(s).
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 
A. 5
B. 1
C. 
D. 
Solve the problem.A computer manufacturer has three outlet stores that sell its four computer systems. The following table shows the numbers of systems sold by the three stores in July.
The prices of the systems are: $1200 for System 1, $1500 for System 2, $1600 for System 3, and $2200 for System 4. Write the information from the table as a 4 x 3 matrix B. Write a row matrix A for which the entries represent the prices for the systems. If 
find c12. What does this entry of C represent?
A. c12 = 156,000. c12 represents the sales of System 2 at all stores in July. B. c12 = 188,000. c12 represents the total sales at Store 2 in July. C. c12 = 166,000. c12 represents the total sales at Store 1 in July. D. c12 = 176,000. c12 represents the total sales at Store 3 in July.