Determine the solution for the system of equations below. 5x - 5y = 20
-2x - 2y = -4

infinitely many solutions
(2, -2)
(-2, 2)
no solution

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

Can you me find the missing length. i attached an image.

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.