Which of the following best describes the algebraic expression 7(x + 12) - 4

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

How can you tell when x and y are not directly proportional?

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