Final answer:
To find the difference between Halo and Sam's balances, subtract Halo's balance from Sam's balance. The difference is -$25.02.
Step-by-step explanation:
To find the difference between Halo and Sam's balances, we need to subtract Halo's balance from Sam's balance.
Sam's balance is $12.27 and Halo's balance is -$12.75. When we subtract -12.75 from 12.27, we get:
12.75 - (-12.27) = -25.02.
So the difference between their balances is $25.02.