16 x + 4 y = − 6

8 x + 2 y = 0

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)