If 3t - 7 = 5t, then 6t = ?

A) -42

B) 21

C) -7

D) -21

What expression is equivalent to 1/2(2+3x-6)

Witch represents the inverse of the function f(x)=1/4x-12

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