Colin took out a loan with a principal of $32,800. After five years, the interest and the principal totaled $48,872. If Colin made monthly payments of $816 for five years until the loan was paid off, how much did Colin pay in service charges A) $16,072
B)$88
C)$16,160
D)$163
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What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Which of the following transformations will always produce a congruent figure?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.