Depositing means that you added 50$ to your account. This means that you account increased by an amount of 50. The integer describing this is +50.
Then, withdrawing means that you took money from the account. This means that your account decreased by an amount of 20. This can be expressed as a -20 integer.
A. $25 The explanation would be because 365-105=206 and then double 105 which would be 210 and then subtract that from 206 which would be 50 then divide that by 2 and you would get 25
