What is the range of the function f(x) = 4x + 9, given the domain d = {-4,-2,0.2}?
a. r = {1, 7, 9, 17}
b. r=(-17, -9,-1, 17}
c. r = {-7, 1, 9, 17}
d. r = {-7,-1, 9, 17)

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost