The sum of two numbers is 42. the larger number is 18 more than the smaller number . what are the numbers?

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?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?