Question

Help me please I am completely lost

Answer 1

Okay, your answer is 182. You really do not need to look at the crazy stuff on the paper about the crazy numbers. Look at the graph. It is counting up by 20's on the left side. But on the right side, the whole time it is counting up by 13's. Your answer is 182.

Answer 2

The answer is 182. 
for 280 cards the total cost will be 182. 
I did the long way because I couldn't come up with an equation. I will post a picture for my work.