Previous question: "I am stuck on questions 27 - 31. I think that I found what the expressions for 25 and 26 are, but I don't know what to do for the equation."

Answer: 

Great question. To know what equation to write for number 28, you'll need to refer to the diagram you draw in number 27. What is equal there?

Quick note: the test doesn't prompt you to make a chart, but it is still a good way to organize what you know for this problem just as you did in the practice problems.

Number 27 asks you to draw a picture of the scenario. It has given you something to start with and you are to finish it by filling in the distances where the question marks are.

The Whirlaway ? will be the total distance that Whirlaway runs in this scenario.

The Citation ? will the total distance that Citations runs in this scenario.

Hint: Consider this scenario in this way. You are Whirlaway and you go to catch your little sibling that is across the yard. The moment you take off, they take off. At some point you catch them. Did you guys run the same amount of time? Did you both run the same distances?