Which describes how to calculate the range of this data set?
4, 5, 6, 8, 11, 12
Subtract 11-5
Subtract 12-4
Add 11+5.
Add 12+4.

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?