Nahshon needs to borrow $8,500 from the bank. For a 3-year loan, the bank will charge him an APR of 12.99%. What is the total amount of money Nahshon will pay the bank at the end of the loan? SOLVE PLEASE!!

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.