Examine this system of equations. Which number can be multiplied by each equation so that when the two equations are added together, the y term is eliminated?
3
5 5
gX+ BY=
O 15 times the first equation and 12 times the second equation
O 15 times the first equation and -12 times the second equation
30 times the first equation and 6 times the second equation
30 times the first equation and 6 times the second equation

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

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.

What are the domain and range of f(x)= -log5(x+2)