Answer:
C
Step-by-step explanation:
look up rules of multiplying radicals.
You can multiply the radicands (the number inside the square root) then take the square root of the new number.
3*21 = 63
Factor 63 into 3*3*7
Pull out 3^2 from inside the square root
leaves you with 3sqrt7 or answer C
Only 3 kids could eat equally because 3 is the highest number that goes into 12 and 9
Well the answer is 0 because if anything = 0 then it has to be multiplied by 0 so x = 0
The answer is D:10 cm, I just took it and got this.
