Zalen surveyed his classmates about the number of pets they had in their homes. He displayed the results in this dot plot. How many people did Zalen survey? Please help me

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.

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x