Step-by-step explanation:
6+6=12
As, 6 x 2 = 12
An example = 6 books were in ur classmates desk, and u had 6 book as well in ur desk
U wanted to build a tower of books
So merged them together
And put them on each other until all books are done
Which now u will simply add the 6 books of ur classmate and urs
Which will be 12 book
Maria because she is in debt of $210 meaning she owes $210. That is greater than the other debts.
Answer:

Step-by-step explanation:

I hope I helped you^_^