PLEASE HELP, ITS URGENT I WILL GIVE.. Shopping for school supplies, you recently spent $22 to purchase a notebook, a box of pencils, and a package of pens. The box of pencils costs $2 less than the notebook. The package of pens costs 3 times as much as the box of pencils. Choose a variable. Define the variable. Write and solve an algebraic equation to find the cost of each item you purchased. Please show work for Notebook and Box of Pencils and Package of pens. And an equation. (I WILL GIVE POINTS AND PLEASE HEL)

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?