One side of a triangular garden is x feet long. The other two sides of the garden are both 5 feet less than twice the length of the first side of the garden.

Part A: Write a simpiflied expression for perimeter, in feet, of the garden.

A fence is placed along the entire perimeter of the triangular garden. The roll of fencing is 40 ft long.

Part B: Write a simplified expression to show the amount of fencing, in feet, which is left from the roll of fencing.