Mrs. Middendorf's car has a 11 1/5 gas tank. The gas gauge shows of a tank remaining.

a. How many gallons of gas remain?

b. How many gallons of gas are needed to fill the tank?

c. The gas pump fills the tank at a rate of 2/3 gallons per minute. How long would it take to fill to the tank? Express the answer as a simplified improper fraction.

d. The gas pump fills the tank at a rate of 2/3 gallons per minute. How long would it take to fill up an empty tank? express the answer as a simplified improper fraction.

some one please help I don't understand this question or how to answer it​