Michelle bought 2 tickets to a zoo. after she bought the tickets, her account balance showed a change of –$33.04. what would have been the change to michelle's account balance had she only bought 1 ticket to the zoo? –$16.52 $16.52 $16.50 –$16.50

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827