Proportions are kinda hard to solve for me llololol may some one me with this one

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?

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out