Thom worked 20 hours last week at the sporting-goods store and earned $155.00. if he continues to earn the same hourly pay , how many additional hours must he work to earn another $217.00

He must work 28 hours and all you have to do to find how much he made in one hour is divide 155 by 20 then you get 7.75$ and that's his hourly wage so you take 217$ and divide by 7.75 and you get 28 hours

7for nonmembers i think