What is the solution to the system of equations? -6x + 5y = 1 6x + 4y = -10
Use the elimination method

How many $20 bills do you need to have to make $280

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.

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?