Hey y'all say hi back

If rt is greater than ba, which statement must be true ?

Plz hurry evaluate the expression a+b where a=8 and b=19

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?