You should use a bar graph because that would work better
Recall that
So we have
So either .
Since , we expect , so we take the negative square root. Then
This then means we have
Okay so take away $20 from your $90 you get $70. Divide $70 by $5 per hour and you get to rent a surfboard for 14 hours.
100? Cause 10 X 10= 100 unless there shaking with both hand which would be kinda odd.