Write an algebraic equation and use it to solve the problem.During a hurricane evacuation from the east coast of Georgia, a family traveled 
west. For part of the trip, they averaged 
but as the congestion got bad, they had to slow to 
If the total time of travel was 9 hours, how many miles did they drive at the reduced speed?
A. 140 miles
B. 150 miles
C. 145 miles
D. 135 miles
Answer: A
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First use front-end rounding to write an estimate of the answer, and then multiply fully to obtain an exact answer.EstimateProblem
?
A. Estimate: 120, exact: 110.89 B. Estimate: 12, exact: 11.089 C. Estimate: 120, exact: 109.89 D. Estimate: 12, exact: 10.989
Solve and graph.-14 < 8x + 10 and 8x + 7 < 15
A. [-3, 1)
B. [-3, 1]
C. (-3, 1]
D. (-3, 1)
Find the zeros of the function. Give approximate solutions rounded to three decimal places when necessary.f(x) = 4x2 - x + 3
A. 0.125 ± 0.857 B. 0.125 ± 1.714i C. 0.125 ± 1.714 D. 0.125 ± 0.857i
Solve the problem.If an object weighs m pounds at sea level, then its weight W (in pounds) at a height of h miles above sea level is given approximately by W(h) = m 
2. How much will a man who weighs 165 pounds at sea level weigh on the top of a mountain which is 14,494 feet above sea level? Round to the nearest hundredth of a pound, if necessary.
A. 165.23 pounds B. 164.77 pounds C. 165 pounds D. 7.72 pounds