Which equation demonstrates the distributive property?A) 81 + 18 = 99 B) 81 x 18 = 18 x 81 C) 81 + 18 = 9(9 + 2) D) (9 + 2)9 = 9(9 + 2

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?