given that for the new lenses which mozart lenses inc. introduced is 246 out of 800
i.e. sample proportion = no of persons who said would purchase/total people surveyed
it can be estimated that since this is a random sample, this will give an estimate for the proportion of full lenses users for the year
total people who purchase eyeglasses in a year = 1700000
out of those, persons expected to purchsae new lenses =
annual sales potential for new lenses = 522,750
look at the picture.
4(5x + 6)
to start, let's expand things out, as we cannot learn anything from this form. we get 30x + 20 - 10x + 4, or 20x + 24. to find the gcd (greatest common divisor), we take the terms and try to find the number (or term) that divides them. it must be a constant, because of the 24, and 4 goes into 20 and 24. so, our final answer is 4(5x + 6).
simple distributive property.
9 are silver, 1