Answer: 96 ounces of red paint and 32 ounces of white paint is needed to make 1 gallon of pink shade
Step-by-step explanation:
Since we have given that
To make the perfect shade of pink Shawna needs 3 ounces of red paint and 1 ounce of white paint ,
So, the ratio becomes
3:1
We need to find to make 1 gallon of pink paint ,
As we know that

So,
Amount of red paint needed to make 1 gallon of pink shade is given by

And,
Amount of white paint needed to make 1 gallon of white shade is given by

Hence, 96 ounces of red paint and 32 ounces of white paint is needed to make 1 gallon of pink shade .