Can someone pls give me the answer for this?

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Graph the line with the given slope m and y-intercept b. m=-3,b=1