One fifth of twenty people in the bakery made a preorder. how many people did not preorder

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat

Is of - 4x + 2? a. 3 b. 4 c. 6 d. 5

What integer is equivalent to 9 3/2