Can someone please help me with this question? " For what value of x makes the equation 4x-3.5 (2x-8) = 40 true"

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Carmen begins her next painting on a rectangular canvas that is 82.7 cm long and has a area of 8,137.68 cm2. will the painting fit in a frame with an opening that is 82.7 cm long and 95 cm wide? explain

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)