How do i solve this problem involving simplifying exponents, squaring, and fractions

There are 96 raisins and 24 cashews in each package of granola. what is the unit rate in raisins per cashew? plz 4122096

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.

How do you write something in scientific notation?