I hope this helps you
a=C/8.pi.b
Answer:
1.) 
2.) 
Step-by-step explanation:
1.) 
2.) 

Answer: 701953087225 is the answer
It's A), because if the highest exponential would've been uneven, the graph would go up, then down, but as you can see it kinda resembles a parabola, making it one out of A) and B)
as you can see, the graph crosses the system at (0/0), so it can't be C), due to it's constant at the end, being "+1"
so it's A)
Dividing 1.93km by 23 minutes, you get 0.083 km per minute, or 5.03 km per hour