Which expressions represents a 20% discount off the price of an item that originally cost d dollars #1 0.8d
#2 d – 0.2
#3 d – 0.2d
#4 1 – 0.2d

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

What point is the projection of q on a) r b) s c) t

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.