Miles is painting pumpkins for Halloween and he has 3/4 of a gallon of paint.
Each pumpkin needs 0.03 gallons to cover the pumpkin.
We are asked to find out How many pumpkins can he paint?
The number of pumpkins he can paint is given by

Where the total amount of paint that is available is 3/4 = 0.75 gallons
The amount of paint required for each pumpkin is 0.03 gallons
Substituting the values into the above formula

Therefore, Miles can paint 25 pumpkins with 3/4 gallons of paint.