Determine an estimate of the exact answer. Use estimation by rounding.Andy wants to buy a refrigerator for $899, a stove for $459, and a dishwasher for $249. Round each cost to the nearest hundred to estimate the total cost.
A. $1600
B. $1400
C. $1700
D. $1500
Answer: A
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Make the following length or weight conversion between the U.S. and the metric system.64 kilograms to pounds (1 kg ? 2.20 lb) (Round to the nearest hundredth.)
A. 162.56 lb B. 67.84 lb C. 140.8 lb D. 28.8 lb
Find the range of the set of numbers.-3, -5, -3, -4, -5
A. 2 B. -4 C. -2 D. -3
Solve the problem.The angle of elevation from a rowboat moored 1929 feet from a cliff is 10°39'. Find the height of the cliff to the nearest foot.
A. 366 ft B. 363 ft C. 373 ft D. 376 ft
Solve the problem.The surface area S (in square inches) of a cylindrical pipe with length 12 inches is given by S(r) = 2?r2 + 24?r, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes) according to the formula r(t) = 
t2, t ? 0, find the surface area S of the pipe as a function of the time t.
What will be an ideal response?