I need help with this

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

When only separate discreet points are graphed it is called?

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?