in the given problem 40 is our base becouse if represents the(blank) 75% Is the rate becouse it is ratio between the(blank) and the.(blank) 30 pupils is the percentage becouse it is a part of the.(blank)

Find dy/dx using implicit differentiation ln(20+e^xy)=y

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

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?