Three friends pooled their money to purchase a new game system that cost $298.one person contributed $9 less than the first person and the third friend contributed $15 less than the first person. How much did each of the friends contribute to the purchase?

i believe b is the answer

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost