Find the height of a rectangular prism with a 3in. By 4 in base and a volume of 20 cubic inches

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?