Please help me with these 3 questions, please. Thank you!

Me because some of question i don’t understand

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.