- - = + 9-(-4)= 9+4 so minus minus becomes plus. and 13 is the answer.
this is false not all equations and all equations are identities are same
It would be A because with volume you would have your 12 to the 3rd power then multiply it by pie which is 3.14 then for sphere you would then multiply what ever you got after multiplying 12 to the 3rd power then by 3.14 to the 4/3
