First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Mr. Buttimer took a plane trip for a total of 5.58 hours. He watched an in-flight movie for 1.5 hours. From the airport, he took a cab ride for 0.72 hour to the train station. Next, he took the train home for 1.87 hours. What was the total time spent traveling?
A. Estimate: 11 hours; exact: 8.17 hours
B. Estimate: 11 hours; exact: 9.67 hours
C. Estimate: 12 hours; exact: 9.67 hours
D. Estimate: 9 hours; exact: 8.17 hours
Answer: D
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Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = -x2
A. 
B. 
C. 
D. 
Simplify.9 ? 62 - 7(5 + 6) - 
A. 
B. 256
C. 
D. 3496
Solve. Give your answer as a mixed numeral.A small company sells stock for 9
dollars per share. How much will 288 shares cost?
A. 329 dollars
B. 324 dollars
C. 29
dollars
D. 2772 dollars
Provide the proper response.If r(t) is the rate of change of sales, then 
isi) the total sales up to time b.ii) the total sales from time a to time b.iii) the change in sales at any time.
A. Both i and ii could be correct. B. Only ii is correct. C. Only i is correct. D. Only iii is correct.