The annual tuition at a public two-year college last year was $3,200. for the new school year, elizabeth’s first year in college, the tuition is expected to increase 5%. she saved the same amount monthly to prepare for the cost of her tuition. what is the minimum amount elizabeth should have saved monthly during the previous year? $267 $280 $308 $400

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.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.