What is the area of the trapezoid.

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

Find the interior angle of a regular polygon which has 6 sides

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6