Solve the problem.An inclined walkway leading to a new building is to rise 13 inches for each horizontal distance of 23 feet. Write this slope as a grade. (Round to the nearest tenth of a percent if necessary.)
A. 4.7%
B. 176.9%
C. 2123.1%
D. 56.5%
Answer: A
Mathematics
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Solve the rational equation. If there is no solution, state this as your answer.
- 
= 1
A. 
B. 
C. {2}
D. 
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Find the value of df-1/dx at x = f(a).f(x) = x3 - 3x2 - 6, x ? 2, a = 6
A. - 
B. 72
C. 
D. 
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Solve.Mary borrowed 
to finish college at an interest rate of 
per year. How much interest will Mary need to pay next year?
A. $630 B. $6300 C. $14,630 D. $20,300
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Solve.Find the amount of discount when the original price is $245.60 and the discount rate is 20%.
A. $240.69 B. $49.12 C. $4.91 D. $196.48
Mathematics