25 Evaluate the expression a^2+b+3 for each set of given values. Enter each
number in the provided box. If a=4 and b=3 (HINT: substitute the variables
then solve)

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