Greg owns a clothing store where he designs t-shirts, t, and pairs of shorts, s. he sells the t-shirts for $7 each and the shorts for $16.

greg can work 18 hours a day, at most. it takes him 30 minutes to design a t-shirt and 45 minutes to design a pair of shorts.

he must design at least 12 items each day, but he cannot design more than 28 items in one day.

which set of inequalities below represents this scenario??