Which equation could represent "the total cost of popcorn at the movie that sells for $2.50 each if p packages of popcorn are purchased"?

a. c(p) = 2.50p
b. c(p) = 2.50 + p
c. c(2.50) = p

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.