Determine whether each Identity is true or raise. (2 pommes) True
False
a3 – 63 = (a - b) (a² + ab + b)
a² + 2ab + b2 = (a + b)(a + b)
O
a? – 2ab + b2 = (a + b)(a - b)
a? – b2 = (a + b)(a + b)
O

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