Give an example of an equation with an infinite number of solutions. Then make one change to the equation so that it has no solution.

Solve the system of equations. y= 2x y= x^2 - 15

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Which numbers have the same absolute value? choose all that apply. asap will mark at brainliest