Find the circumference and area of a circle with radius 13 mm. Use t = 3.14, and round your answers to the nearest hundredth.

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.

What is the prime factorization of 23 ?me with this question

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.