what expression should be substituted for y in the equation 5x+2y=25 to solve the system of equations?

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.