Math .

42

Step-by-step explanation:

I searched it, but you do 42+36 and you get 78 so it's 42. I hope this was right!

7

Step-by-step explanation:

1. remove parenthasese 36+42=36+6+☐

2. cancel equal terms 42=6+☐

3. divide 42/6=7

only 10/60 isn't equivalent

hope this : )