Answer:
−2w−14
You have to collect like terms and simplify
Anna had 6 cookies. She decided to give all of her cookies to her friends.
How many cookies does each friend get?
First you need to set up a formula. Underline all of your givens:
<u>Spent 1/2 on clothes
$6 more for washing windows
Ended with $10.
</u>
now you need to set up an equation.
<u>
</u>You know she ended up with $10. So that will be what it equals. Then you know that she earned $6 in addition to her allowance. So this would be (x= allowance) (x+6)/2 = 10.
<u>
</u>Now you need to solve for x.
Multiply both sides by 2.
<u>
</u>x+6=20<u>
</u>Now subtract both sides by 6 to get x alone:
<u>
</u>x=$14<u>
</u><u>
</u>
Answer:
C) It helps reduce carbon dioxide emissions
Step-by-step explanation:
- Methane being a vital greenhouse gas and produces 84 times more heat than carbon dioxide, its concentration varies across the seasons and can remain in the atmosphere for a period of 12 years.
- Methane has the ability to stay in the atmosphere without the oxygen for a longer duration.
- The gas can produce water vapor through the chemical reaction when it reaches the mesosphere and is most likely to produce clouds.
- <u>The environmental benefits of this gas is that it can produce energy by mass and are more refined than oil and creates less pollution and pollutants.</u>