Question

Bernie just graduated from art school, and he hopes to make a living as an artist. For now, his goal is to earn at least $2,000 each month from his art. He sells his original works for $250 each and prints, or copies, for $20 each. Because of the time it takes to create each original work, Bernie can sell at most 5 of them each month.
Which pairs (w,p) represent possible numbers of original works and prints Bernie could sell each month to meet his goal?

4.5,50

5,40

6,20

8,0