What's the cubic feet?

What is the simplified expression for 6(2(y+x))

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq