If 36 pieces of data were used to create the given box and whisker plot, how many more pieces fell between 50 and 58 than did between 70 and 72?

What is the measure of angle afe? 79 81 91 99

Is there an x intercept in the equation 60*1.15^x

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?