10. If the cones below are similar, what is the ratio
of the slant height of the smaller cone to the
larger cone?
SA = 52 in2
SA = 637 in2

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.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4