To find out how much change Colby received, we first need to calculate the total amount he paid the driver, which includes the fare and the tip.
Total amount paid:
- Fare: $65.70
- Tip: $4.00
Total amount paid = Fare + Tip
Total amount paid = $65.70 + $4.00 = $69.70
Now, Colby gave the driver a $100 bill. To find the change he received, we subtract the total amount paid from the amount he gave:
Change = Amount given - Total amount paid
Change = $100.00 - $69.70 = $30.30
So, Colby received change in the amount of $30.30.