Aslide 4.1 meters long make an angle of 35 degress with the ground . to the nearest tenth of a meter , how far above the ground is the top of the slide?

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.

Can someone me out here number 4 plz

What are the domain and range of the function f(x)=2^x+1