Step-by-step explanation:
Katie's deposits are positive: 23.87, 41.03, and 61.33.
Her withdrawals are negative: -4.34 -21.11, -8.78.
Sorted from least to greatest (most negative is least, most positive is greatest):
-21.11, -8.78, -4.34, 23.87, 41.03, 61.33
Katie started with $128. Add to it all the deposits and withdrawals:
128 − 21.11 − 8.78 − 4.34 + 23.87 + 41.03 + 61.33 = 220
