Anita works for a dog-walking service. she earns a one-time fee of $10 plus an additional $2 for each dog she walks. if anita wants to earn at least $40, what is the minimum number of dogs she must walk?
select one:

25

15

5

20

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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.

The trigonometric ratios sine and secant are reciprocals of each other