La luna se mira en el espejo del lago
It is a metaphor
The seven is not right must be
15:(1+2)=5 first the pharentesis 15:3=5
They way that you put the answer of the seven is not correct, the pharentesis is not needed in the case like you use it because anyway (without pharentesis in other places) the division go first that the sum
and the eight is correct
In order for me to help you with this one you'll have to write down the answer so I can translate it