Solve the problem.A nail 2
inches long is driven into a board 
thick. How much of the nail protrudes from the other side of the board?
A. 2
in.
B. 
in.
C. 1
in.
D. 
in.
Answer: C
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Write as a percent.0.5
A. 0.5% B. 500% C. 0.05% D. 50%
Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation 
where x is the time in months, with 
corresponding to January, 
and 
Determine the month with the greatest total sales and give the sales in that month.
A. December; $8,800 B. March; $8,800 C. September; $3,800 D. June; $6,300
Solve the problem.A certain radioactive isotope decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A. 109 years B. 252 years C. 182 years D. 3 years
Solve the problem.The sum of two angles is 231°. One angle is 27° less than twice the other. Find the angles.
A. 84° and 147° B. 141° and 90° C. 84° and 141° D. 86° and 145°