Use I = Prt for simple interest to find the indicated quantity.P = $13,500; t = 4 months; I = $517.50. Find r.
A. 11.7%
B. 7.7%
C. 3.8%
D. 11.5%
Answer: D
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Solve the problem.The sum of the squares of the digits of a positive two-digit number is 61, and the tens digit is 1 more than the units digit. Find the number.
A. 54 B. 56 C. 65 D. 45
Solve (Round your answer to the nearest thousandth). The seven-day mean of settleable solids cannot exceed 0.15 milliliters per liter (mL/L). During the past seven days, the measurements of concentration have been 0.14, 0.11, 0.25, 0.19, 0.12, 0.12, and 0.16 mL/L. What was the mean concentration? Was it within the limit?
A. 0.158, no B. 0.156, no C. 0.144, yes D. 0.142, yes
Write the partial fraction decomposition of the improper rational expression.
?
A. ?
B. 
C. 
D. 
E. 
Find the difference.-37 - 37
A. -111 B. 74 C. -74 D. 0