Determine which pair of functions are inverse functions. (a) f(x) = x - 4; g(x) = x + 4
(b) f(x) = x – 4; g(x) = x-4 over 4
© f(x) = x - 4; g(x) = 4x – 1
(d) f(x) = 4x – 1; g(x) = 4x + 1

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?