The error is if you add all of those times up it is equal to 7.55 minutes and that's more than 6
Step-by-step explanation:

Square both sides of the equation.


Answer:
171
Step-by-step explanation:
9 * 19 is 171 dollars so that's what he'll owe
The number of different three-digit numbers that can be set for the combination lock is 125
<h3>How to determine the number of different locks?</h3>
The digits are given as
Digit = 1, 2, 3, 4, 5
Each digit can be repeated on the number lock.
So, the individual digit of the lock can be any of the 5 digits.
So, we have:
Locks = 5 * 5 * 5
Evaluate
Locks = 125
Hence, the number of different three-digit numbers that can be set for the combination lock is 125
Read more about combination at:
brainly.com/question/11732255
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