4:1,
there are 4 cups of water for every 1 cup of sugar
The equation you wrote has no solutions since the left hand side is equal to 6x-10 and the right hand side is equal to 6x+8. Setting them equal we get -10=8 which is obviously wrong.
Answer:
4x² - 21x - 18
Step-by-step explanation:
Use FOIL.

Hope this helps.
7/9% is not 7/9 of 1, it's 7/9 of 0.01.
So, it is 0.0078
Hope this helps!