High molecular weight methacrylate is used for the sealing of concrete surfaces at a preparation of one gallon per 100 square feet. How many gallons of HMWM are needed to seal the surface of a 30 mile section of highway 20 feet wi de?

High molecular weight methacrylate is used for the sealing of concrete surfaces at a preparation of one gallon per 100 square feet. How many gallons of HMWM are needed to seal the surface of a 30 mile section of highway 20 feet wi de?