Find the difference -4 3/8 - -1 1/4

Find percent notation for 0.008 0.008=

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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