Please help me I need this to have a good grade in my algebra class

What is the quotient of -3/8and-1/3?

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

The number of students who ride a school bus is 110% of the number of students who walk. how many students ride the school bus?