Solution
Isn't it just 2 * 4 = 8 dollars.? I almost figured it out using the 8 hats. Nice trick.
Answer:
It means direct sum.
Step-by-step explanation:
bAnswer: the answers is most likely a because of the nomination
the second one is the answer
1, 2, 4, 5, 8, 10, 20, 40
3,6,15,17,21
I hope this is good enough: