3.
We know that Hobby Land sells art supplies two different ways.
We can represent the situation with a system of equations

Where x is the cost of one easel and y represents the cost of one paint set.
Now, we must solve the system of equations.
We can multiply equation (1) by -4

Then, we can add (3) + (2)

Now, we can solve the equation for y

Finally, to find x we can replace the value of y in the equation (1)

So, the cost of one easel is $64.
Solution as either an ordered pair:
- (64, 75).