Answer:
She studied for 8 hours
Step By Step Step-by-step explanation:
There are two ways of solving this. If you want to do it fast, you can multiply. Since Lucy studied 2 hours a day for 4 days, it's the same as 2×4, which is 8. Therefore, the answer is 8. If you want to check your answer, you can add 2 four times since it's the same answer when you multiply. If you add, it would look like this: 2+2+2+2=8. Therefore, Lucy studied for 8 hours in total. Hope this helps