An art club sells 42 large candles and 56 small candles.

The price of the larger candle is 10 dollars and the cost of the larger candle is x dollars. The Price of the smaller candle is 5 dollars and the cost of the smaller candle is y dollars. Profit equals price minus cost.

a. Write and simplify an expression that represents the profit.

expression for the profit:
$($
$-\ x)+$
$($
$-\ y)$

simplified expression for the profit:

b. A large candle costs $5, and a small candle costs $3. What is the club's profit?

club's profit: $