Use substitution to solve the system of equations.

y = 4.5x + 7.5
y = –3.5x – 4.5

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

One integer is 5 more than another. their product is 104. find the integers

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103