What is the answer to this, and can you explain it please I don't get it!

Answer:
742 Points
Step-by-step explanation:
Just to make it simpler to read/write, I'm going to shorten Val to V and Peeta to P.
P=1060
V=Px0.7
This is because V has 30% less than P. I like to convert this to a decimal of 0.3. In this situation she has P-0.3P which can be simplified to 0.7P
So then substitute in P=1060, so that V=1060x0.7=742
(remember to add units!)
So Val has 742 Points
If you want me to explain any of this more in-depth, let me know!
Hope this helps :)