Heather and jerry each bought an ice cream bar. although the bars were the same size, they were different flavors. heather ate 5/8 of her ice cream bar, and jerry ate 5/10 of his. who are more or did they eat the same amount

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

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?