The position of an object moving along a line is given by the function s(t) = -7t^2 + 21(t). find the average velocity of the object over the following intervals
the average velocity of the object over the interval [1, 1 + h] is ?

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

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.

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?