How many solutions does this equation have?

4 − 6r = –9r + 4

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Askateboard ramp is in the shape of a right triangle what is the height of the ramp