Sqrt(80) = Sqrt(16) x sqrt(5)
= 4 x sqrt(5)
You want to get the total amount Henri has which is $14 then subtract the flat fee.
14-1.25=12.75, He has $12.75 left to pay for miles, Since the taxi charges .75 a mile, you get $12.75/.75= 17
Henri has enough to pay to ride 17 miles.
Hope this helps
If the bean plant is 3 inches, then the corn plant would be 15 inches. If you multiply 3 times 5, you would get the answer (15).