If 60 - y <20, then y could be?

Any number 41 and below

First solve the inequality to get y alone:

60 - y < 20

-y < - 40 (subtract both sides by 60)

y > 40 (multiply both sides by - 1)

So Y could be equal to any number that is above 40 (not including 40 itself)

For example, Y could be equal to 50.