The average credit score in Canada is 650. Assume that credit scores follow a normal distribution with a standard deviation of 100. (a) Find the 85th percentile of credit scores in Canada. (Round your answer to the nearest integer.) (b) 70% of Canadians have a credit score higher than what value? (Round your answer to the nearest integer.) (c) Mac's credit score is 780. In what percentile is his credit score? (Round your answer to the nearest integer.)