How to work on this? (x+1) (x+1) (x+1) what the answers will be?

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

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?

What is the point slope form of a line with slope -5 that contains point (2,-1)