Ricky's family wants to invite his classroom to a "get acquainted" party. If 20
students attend, the party will cost $100. Assuming the relationship
between cost and guests is proportional, which of the following will be the
cost if 29 students attend? *
if 20 people go and it ends up costing 100 then you do 100 divided by 20 and get 5, so its 5 bucks per person. So, if 29 people end up going, you do 29 times 5 and get 145.
