Decide if the answer is reasonable or unreasonable by rounding the numbers and estimating the answer. If the answer is not reasonable, find the correct answer.938.8 ÷ 4.3 = 21.83
A. Unreasonable, should be 2183
B. Unreasonable, should be 2.183
C. Unreasonable, should be 218.3
D. Reasonable
Answer: C
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Solve the problem.A flagpole is perpendicular to the horizontal but is on a slope that rises 10° from the horizontal. The pole casts a 43-foot shadow down the slope and angle of elevation of the sun measured from the slope is 36°. How tall is the pole? Round your answer to the nearest 0.1 foot.
A. 36.2 ft B. 35.4 ft C. 36.4 ft D. 33.5 ft
Divide. Express your answer in simplest form.5
÷ 3
A. 1
B. 1
C. 2
D. 1
Solve the problem.The sales of a mature product (one which has passed its peak) will decline according to the function 
where t is time in years since the peak sales. Find the sales of a product 22 years after its peak sales if 
and 
A. 300,274 B. 433 C. 865 D. 17,196
Graph the system of inequalities, and find the coordinates of the vertices.x - 2y ? 2 x + y ? 0
A. 
B. 
C. 
D. 