Let x = hours to meet
train one has a 2 hour head start or 210 km head start
210 + 105x = 135x
30x = 210
x = 7 hours to meet
Answer:
35
Step-by-step explanation:
the pattern is +2 so the answer is 35
Solution
For this case we have the following amount: 35 pints
We want to convert this into quarts so we can do this:

Then the answer rounded to the nearest hundredth is:
17.50 quarts
Answer is B, 21.6
Let me know if you need an explanation