Solve the word problem.
A group of roommates decide to split the cost of a new sofa. If s is the cost of the sofa and n is the number of roommates, the formula c= 5/9 determines each person’s share of the cost. If the new sofa costs $955 and 4 roommates live in the house, what is each person’s share?
a. $382.00
b. $238.75
c. $221.25
d. $95.50