During a paint salea hardware store sold 33 gallons of flat paint and 57 gallons of high gloss paint what is the ratio of gallons of high gloss sold to the total gallons
sold

In the question, it is already given that during the paint salea hardware store had sold 33 gallons of flat paint and 57 gallons of high gloss paint. From the above line we get the idea about the ration of the two types of paints being sold.
Then
Total gallons of paint sold = (57 + 33) gallons
                                         = 90 gallons
Then the ration can be written as
Total gallons of high gloss sold:total gallons of paint sold
57:90
Dividing both sides by 3, we get
57/3:90/3
19:30
So the ratio that is required to be found is 19:90