Mamadou has two summer jobs. During the week he works in the grocery store, and on the weekend he works at a nursery. He gets paid $17 per hour to work at the grocery store and $18 per hour to work at the nursery. How many total hours does he work if he does 12 hours at the grocery store and 11 hours at the nursery? How many total hours does he work if he does g g hours at the grocery store and n n hours at the nursery?