Answer :
The correct answer is D. 57 : 90.
To find the ratio of gallons of high-gloss paint sold to the total gallons sold, you first need to calculate the total gallons of paint sold. You do this by adding the gallons of flat paint sold to the gallons of high-gloss paint sold:
33 gallons (flat) + 57 gallons (high-gloss) = 90 gallons (total)
Now, to find the ratio of high-gloss to the total, you use the number of gallons of high-gloss paint sold and the total gallons sold:
57 (high-gloss) : 90 (total)
Therefore, the correct answer is D. 57 : 90.
