Please help i dont know this The width, w, of a rectangular rug is 4 less than its length, L. If the perimeter of the rug is 120 square feet, which equation could be used to find the dimensions of the rug?

Wo competing gyms each offer childcare while paretnts work out. gym a charges $9.00 per hour of childcare. gym b charges $0.75 per 5 minutes of childcare. which comparison of the childcare costs is accurate? gym b charges $1.05 less per hour than gym a. gym b charges $1.50 less per hour than gym a. gym b charges $5.25 less per hour than gym a. gym b and gym a charge the same hourly rate for childcare.