Answer: A IS CORRECT
Step-by-step explanation:
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades.
The first one is correct because that one shows how many times you drank milk today but the rest show how many times you drank milk yesterday.
When you multiply exponents like in the problem, you add them together.
So to find the answer, just subtract the final exponent of 'a' from the original.
6-2=4
The answer should be 4
