The total cost of a $58 bill with a 20% tip would be $69.60.
Step-by-step explanation:
To find the amount you must first find the value of 20% of 58. In order to do that, you can multiply them together (don't forget to turn 20% into a decimal first).
58 * .20 = 11.60
Now we take the tip amount and add it to the bill total for the total amount.
