Write an equation for each context. draw a model first if necessary, and make sure you define your variable and what it represents.
a. tom has $12,484 in his bank account. six months ago, he had $1,240. how much does tom get paid each month if he has only deposited his monthly paycheck into his account? 

b. sixty-five pounds of candy was divided into four different boxes. the second box contained twice the amount of the first box. the third box contained two more pounds than the first box. the last box contained one-fourth the amount in the second box. how much candy was in each box? 

c. simon is ordering equipment for his tennis team. he orders a racquet and can of three tennis balls for each player. each can of balls costs $4. for a team of 5 players, his bill total is $415. how much does each racquet cost?