Use the order of operations to simplify the expression.
A. 
B. 239
C. 2
D. 
Answer: A
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The amount M of mercury, in milligrams per deciliter, in the blood of a man eating contaminated food is given by 
, wheret is the time in months since observation began. What is the limiting value of mercury in the bloodstream?
A. About 0.88 milligrams per deciliter B. About 1.76 milligrams per deciliter C. About 0.89 milligrams per deciliter D. About 2.08 milligrams per deciliter
Evaluate.
A. -19 B. -3 C. 4 D. 3
Write the percent as a fraction or mixed number in simplest form.175%
A. 
B. 17
C. 3
D. 1
Solve the problem.A small business owner made $30,000 the first year he owned his store and made an additional 
over the previous year in each subsequent year. Find how much he made during his fourth year of business. Find his total earnings during the first four years. (Round to the nearest cent, if necessary.)
A. $0.24; $30,612.24 B. $62,208.00; $223,248.00 C. $51,840.00; $161,040.00 D. $31,836.24; $123,648.24