I believe the answer is A. 40.
It took the plane 1700 seconds for the plane to land. If you look at the x-axis, you can see that the x-intercept crosses through the point (0, 1700).
Answer:
Could you explain it another way?
Step-by-step explanation:
Answer: 
<u>Step-by-step explanation:</u>
yellow or purple
+ 
= 
= 