kouroche is organising an overnight camping trip. the cost of renting a cabin is $20. (flat rate) The cost of food is $9 per person .

a) how much will the trip cost if 5 people go? 10 people?

b) write an algebraic expression for the cost of the trip if p people go.

c) suppose the cost of food doubles . write an expression for the total cost of the trip for p people .

d) suppose the cost of the cabin doubles . write and expression for the total cost of the trip for p people.

help with this question ASAP!!!!!