How do you write the quotient when a number is divided by 2 decreased by 2

Determine whether the angles in each given pair are coterminal. 744°, -336°

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?