PLZ HELP! this is due today and i wil mark BRAINLIEST IF CORRECT!!

Acity plans to build a new rectangular-shaped park. the perimeter of the park will be 940 meters. the width of the park will be 300 meters. what will be the length, in meters, of the new park?

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

If angle 2=3x +1 and angle 3=2x +4what is angle 2