Question: Hannah is buying some apples for $5 per kilogram. If she would get a 40% discount on each kilogram of apples, how much would she pay for 10 kilograms of them? Think carefully first, then make a decision:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A 40% discount on each kilogram of apples would mean the price being 40 / 100 * 5 = $2 smaller. So one kilogram of apples would cost not $5, but 5 - 2 = $3. So for 10 kilograms of apples Hannah would pay 3 * 10 = $30. So the answer is 30.