An advertising agency creates magazine ads for customers. The cost for each ad is a basic fee of $500 plus $85 per square inch of advertising. In the space below, write an equation to find the total cost of an ad. Let c represent the total cost of an ad and n represent the number of square inches in the ad. If a customer wants 12 square inches of ad space, what will be the total cost of the ad?

Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0 beats per minute and a standard deviation of sigma equals 12.5 beats per minute. complete parts (a) through (c) below. a. if 1 adult female is randomly selected, find the probability that her pulse rate is between 65 beats per minute and 79 beats per minute. the probability is? b. if 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 65 beats per minute and 79 beats per minute. the probability is? c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?