We need to use simple division to solve the problem. The number of students in the painting class this month is 14.
It is said that each student pays $12 for class and $28 for materials. The total amount paid by each student can be calculated by adding both of them. We know that the total amount this month is $560, we need to find the number of students in the class. Let us consider the number of students in the class to be x, and multiply the total amount per student to x and equate it to 560.
(12+28)x=560
40x=560
x=560/40=14
Therefore the number of students in the painting class is 14.
