Can you break down the solution for me for this math problem: Jenna has 4 roommates. Each month the electricity bill is $100. How much will each roommate pay per year for electricity, if they divide the share equally?
There are 12 months in a year, so the total electricity for the year will cost 100*12 =$1200.
Since there are 5 roommates, each roommate will pay 1200/5=$240 in a year.