That is permuations
that would be 10! or 10*9*8*7*6*5*4*3*2*1=3628800 ways
We can use completing the square.We add 16 and subtract 7 to both sides. Now we get m^2+8m+16=9. The left sides becomes (m+4)^2=9. Taking the square root of both sides and subtracting 4 we get -1 and -7.
The answer is 128 pi in^3. You have to multiply 4x4, then multiply that by 8 to get 128.
What you gotta take from this problem:
What Joe got during break =

What his sister gave him =

What he has total = 10 tadpoles.
Now to assemble this equation:

Now combine like terms to get

Subtract 2 on each side of the equation to get

Now you would divide 5 on each side and get

, however since you can't have a .6 of a tadpole, you would have to round it up to 2.
I think it would be A.
hopefully this helped ᵔᴥᵔ
if it did dont forget to mark brainliest