What is the answer to this math question?

Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

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