John is 70 years younger than Sharon. Sharon is 4 times as old as John. If you let s= Sharon's age and j= John's age, then the problem can be represented by a system of equations. Which of the following shows a graph of this system and the solution to this problem?

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?