Need help with the answer

Which expression will have the same sum as 3_8 + 1/4?

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)

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12