Choose the number that shows the value of the expression 3 × (6 + 1.4) – 42. 3.4
6.2
11.4
14.2

Which function has an inverse function? a.f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?

Ithink i know it but i want to be sure so can you me out ?