Which polynomials are im standard form?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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?

Iwill mark ad braniless pls just evens