How i in the ratio of 6 footballs and 2 baseballs

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

How much would it be worth in 5, 10, 20 years