Answer:
60%
Step-by-step explanation:
There is 56 total ounces of green paint.
42oz is = 3/4
14oz is = 1/4
If she doubles the amount of yellow paint it would be 28oz instead of 14.
42+28= 70
There is now 70oz of paint total which becomes the new denominator.
The numerator is 42oz because that is how much blue paint there is.
42/70=.6 or 60%