Mary has $500 in her account. She makes a $350 withdrawal, deposits $100, and then gets charged a $20 fee. How much does she have in her account?
Mary has $500 - $350 = $<<500-350=150>>150 left after her withdrawal.
She then deposits $150 + $100 = $<<150+100=250>>250 in her account.
Therefore, the result after the fee is $250 - $20 = $<<250-20=230>>230. Answer: \boxed{230}.
To find out how much money Mary has in her account after the transactions, let's follow these steps:
Step 1: Starting with $500 in her account.
Mary initially has $500.
Step 2: She makes a $350 withdrawal.
Subtracting $350 from $500, she has $150 remaining.
Step 3: She deposits $100.
Adding $100 to $150, she now has $250.
Step 4: She is charged a $20 fee.
Subtracting $20 from $250, she has $230 left.
So, Mary has $230 in her account after the transactions.