The cost of shipping a package is $4.75 for up to 1 pound, $8.75 for up to 2 pounds, $12.50 for up to 3 pounds, and $15.75 for up to 4 pounds. determine whether the cost is proportional to the weight of the package. explain your reasoning.

Afunction is given: f(x)=3x+12 a. determine the inverse of this function and name it g(x) b. use composite functions to show that these functions are inverses. c. f(g(– explain: what is the domain?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.