3) Shayna and Anjali are selling pies for a school fundraiser. Customers can buy cherry pies and pumpkin pies. Shayna sold 9 cherry pies and 10 pumpkin pies for a total of $105. Anjali sold 8
cherry pies and 11 pumpkin pies for a total of $106. Find the cost each of one cherry pie and one
pumpkin pie.

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

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?