Write as an expression: Twice the square of the product of x and y

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. after tax the total is 45.99. what percentage of the subtotal is the total?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges