Step-by-step explanation:
Distance = Speed x Time
Given Distance = 40km/h or kph
Time = 5 hours 15 minutes
=

Distance Travelled = 40 kph x 5.25 hours
= 210km
<span>No, because postulates are assumptions. Some true, some not. So it can't be used to prove it</span>
8 or 8 1/2 because you won't finish the ride due to 28 + 3 1/2 being odd