As a valet at the mall, davis works 7-hour shifts. he earns $7 per hour and keeps 90% of his tip money. how much does davis need to be tipped so that he takes home exactly $87.50, before taxes are deducted, per shift?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books