Answer:
The amount of water left is 1550 litres
The answer would be 20 apples.
Answer: $95
Step-by-step explanation:
Te new price will be 90 + 5x, if the price increases "x" times
The number of wind chimes sold per month will become 140 - 7x

Therefore, if the price becomes (90 + 5(1)) = $95 per wind chime, then the revenue will be maximum
I think AB is 3!!
i hope i’m right good luck ,:D