Find the expected value of the random variable with the given probability distribution.

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.