Molly had $10 in her bank account. She used her debit card to purchase eight Monster drinks for $2 each. How much money must she put into her account to bring her balance to $0?​

Initial Amount: $10
Price of Product: $2
Amount purchased: 8
Total spent: (price)•(amount purchased) which is 2(8) = $16
Balance after purchase: $10 - $16 = $6
Therefore Molly must put $6 into her account to bring her balance to $0.