Let m=2x+3m=2x+3m, equals, 2, x, plus, 3.
Which equation is equivalent to (2x+3)^2-14x-21=-6(2x+3)
2
−14x−21=−6left parenthesis, 2, x, plus, 3, right parenthesis, squared, minus, 14, x, minus, 21, equals, minus, 6 in terms of mmm ?

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.