Solve. Write the answer as a mixed number in simplest form.A pair of boards needs adjustment. One board is 56 inches and the other is 54
inches. Find how much the longer board should be shortened to make both boards the same length.
A. 110
in.
B. 
in.
C. 2
in.
D. 1
in.
Answer: D
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A certain drug has a concentration of C milligrams per liter in the bloodstream t hours after it is administered. The relationship is
.
?
A: Make a graph of C versus t for up to 10 hours after the drug is administered.B: The drug is most effective when the concentration is at least 1.5 milligrams per liter. Add the graph of 
to the graph you made in part A.C: During what time period is the drug most effective? Round your answer to two decimal places.
What will be an ideal response?
Use the ordinary annuity formula to determine the accumulated amount in the annuity. Round the answer to the nearest cent.$1700 is invested semiannually for 4 years at 4.3% compounded semiannually
A. $61,537.80 B. $14,668.61 C. $54,203.49 D. $31,665.24
Find the equation of the given line.
A. x = -1 B. x = 1 C. y = 1 D. y = -1
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.There are 90 quarts of grape juice in a vat holding a total of 2300 quarts of fruit juice. What percent is grape juice?
A. 
= 
B. 
= 
C. 
= 
D. 
= 