Greg took his younger sister to the circus. He bought two tickets that each cost $23.50. He also bought popcorn that cost $6.50. Charlotte calculated that Greg spent $53.50 at the circus. Is Charlotte's calculation correct? How do you know?

Will give brainiest pls answer

Which two properties of equality could zoe use to finish solving for x? the equation is 3x - 4 = -10 for x so a either the addition or subtraction property of equalityb ether the multiplication or division property of equality c ether the addition or division property of equality d ether the subtraction or division property of equality just a simple a b c or d plz.