Final answer:
Alberto is not correct because -3 is greater than 2 in mathematics.
Step-by-step explanation:
No, Alberto is not correct. In mathematics, when comparing two numbers, we use the less than symbol (<). The number on the left side of the symbol should be smaller. So, -3 is actually greater than 2. We can also represent this on a number line, where -3 would be to the left of 2.
Learn more about Comparing numbers in mathematics