Answer:
6.25
Step-by-step explanation:
Since 2.5 is squared, we should multiply it by itself once which will give us 6.25
2.5^2 = 6.25
2.5^2 is basically the same thing as 2.5*2.5, so you can do these either way if you like. You should get 6.25 as your result of the answer.
