Evaluate the function f(x)=3x-7 when x=5

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?