Its the only question i dont understand me
explain
casey bought sandwiches and bags of chips. each sandwich cost three times as much as a bag of chips. she bought 5 sandwiches for $6 each and spent $42. how many bags of chips b did she buy?

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)