José made these grades on tests: 78, 88, 98. Without doing any computing, what is his average?

Average acceleration: i have no idea how to do this.

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

Askateboard ramp is in the shape of a right triangle what is the height of the ramp