25% of a circle with radius 4 has the same area as what percent of a circle with radius 8?
A 6.25%
B 12.5%
C 25%
D 37.5%
E 50%

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

Drag the tiles to the correct boxes to complete the pairs. match the cart-coordinates with their corresponding pairs of y-coordinates of the unit circle

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.