Someone my second time retaking 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?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?