Suppose that the first day after Fenty Beauty's makeup hit the shelves, 15 bottles of foundation were sold. On the second day, 18 bottles were sold, and on the third day, 21 bottles were sold.
If the number of sales followed a consistent arithmetic sequence, how many bottles of
foundation were sold over the first 45 days? Round your answer to the nearest whole number.

Find the value of x that will make l ll m

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 f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)