You can use mental math to help you multiply numbers by using the distributive property to divide it easily and then add them up to get a quick answer.
8055003.4 .......................................
4 cups of milk to 1 cup of oatmeal
-3(4r -8)=-36 the answer is r=5
The axis of symmetry in a parabola is a line that's vertical that divides into 2 congruent halves.