Step-by-step explanation:Hey! An idea would be climate change or air pollution. Our carbon footprint and many other things such as the use of cars affect it. Good luck!
First, you multiply $55.96 by $0.12 and you get $6.7152. Then, multiply $49.96 by $0.14 and you get $6.9944. If you subtract $69944-$6.7152 you get your answer which is $0.2792.