Which of the following shows that the sum of two irrational numbers can be irrational? OA (5 + pi) + (3 - pi)
OB. pi/3 + (- pi/3)
OC. sqrt(3) + sqrt(5)
OD. (3 + sqrt(5)) + (3 - sqrt(5))​

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4