Mr. Smith is painting the wall but not the door. A gallon of paint will cover 200 square feet. How many gallons of paint will Mr. Smith need to purchase?

Can somebody me out with this question

What is sin 7x/4 ? i need on this urgent trig

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?