The area of a sail is 4012 square feet. The base and the height of the sail are equal. What is the height of the sail in feet? It is not 2006, that would have to be one heck of a sail.

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