3 is the answer. I hope I helped you. Brainliest is appreciated.
The first equation ;-)
It simplifies down to 3 = -5 which isn't true so, no solutions!
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Answer:
The answer is 45 liters = $1890
Step-by-step explanation:
As 1 liter of helium = $42
So multiply 45 liters with $42
Equals $ 1890 for 45 liters of heluim
