Perform the indicated operations.11 + (-7)(-9) + (-20)
A. 54
B. 142
C. 7
D. -198
Answer: A
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A prime number is a natural number that is larger than 1 and can only be divided exactly by itself and 1. ? Which of the following sets of numbers contains only prime numbers? ?
A. { 37, 31, 35 } B. { 28, 7, 37 } C. { 19, 31, 37 } D. { 7, 19, 4 } E. { 19, 18, 31 }
Solve.7p - 2 + 6(p + 1) = -(4p - 7)
A. p = - 
B. p = 
C. p = - 
D. p = 
Integrate using any method.
Suppose that the annual rate of inflation averages 4% over the next 10 years. With this rate of inflation, the approximate cost C of goods or services during any year in that decade will be given by 
, 
where t is time in years and P is the present cost. If the price of an oil change for your car is presently $25.95,
estimate the price 10 years from now. Round your answer to two decimal places. A. $39.95 B. $40.41 C. $41.95 D. $43.41 E. $38.41