Answer question 28 through 31 and then find the number line that goes with it.

Answer:
Hate to break it to you, but the answer is right there in front of you.
Step-by-step explanation:
Here's a hint: Look at the blue arrows.
And if you didn't read closely enough, it says "Open with this app."
So, I wouldn't be able to answer your question if I didn't know/have the app.
Sorry.