Tim Calibe received a $500 gift from his grandparents. He wants to invest this money for the down payment of a house he plans to purchase in 3 years. What type of computation should he use

Bcorporation, a merchandising company, reported the following results for october: sales $ 490,000 cost of goods sold (all variable) $ 169,700 total variable selling expense $ 24,200 total fixed selling expense $ 21,700 total variable administrative expense $ 13,200 total fixed administrative expense $ 33,600 the contribution margin for october is: