PLEASE HELP ME ASAP For which system of equations is the graph a pair of parallel lines?

A.{y=23x−4y=5+23x
B.{y=79x+9y=9−79x
C.{y=15x−1y=5x−1
D. y=34x+8y=8−43x

State one method by which you can recognize a perfect square trinomial.

Find the common ratio of the sequence. -4, 8, -16, 32, a: -12b: -2c: 12d: -1/-2

Adan has decided to purchase an $9000 car. he plans on putting 20% down toward the purchase and financing the rest at 7.9% interest rate for 3 years. find his monthly payment a) $225.29 b) $298.81 c) $204.78 d) $236.89