Answer:
i Don't know this but other's can help you.
What do u mean like 82+82?
Increase=5%of 4
=5÷100×4=0.2
So 4+0.2=4.2litres
It's kind of not C.
Solve this proportion for 'x':
3/50 = x/2400
Hint: Cross-multiply the proportion, then do what you need to do.