Which expression is a difference of a number and a product?

3-8x

6+x-1

3(7+x)

x+2
——. (That is a fraction)
4.

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

W-16=-12 solve each one step equation plz

Using elimination, what is -4x+2y=-12 4x+8y=-24