i am going to attach snapshots of the questions i need help with / didn't get.

These questions are based on Molarity .
M is the symbol of molarity
'm' is the symbol of molality
mol or mole is used for moles
'n'  represents  number of moles
Molarity = no of moles / Volume in L
from here
No of moles = M X V(L)
take care V is in L
do these questions based on the above formula