Pls answer it pls... We need it

put each a= number in the place of (a) in the big circle the tiny 2 means to the 2nd power ( the number times itself) .. so you use the small circle a=3 then 3² -7 = 2 meaning 3x3=9 and then 9-7=2 so the answer for that small circle is 2 and then repeat for each small circle

answer: slight chance that it will happen

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.