Answer:

Step-by-step explanation:
The last one is also the answer
Using the rational exponet rule,
![\sqrt[n]{ {x}^{m} } = x {}^{ \frac{m}{n} }](https://tex.z-dn.net/?f=%20%5Csqrt%5Bn%5D%7B%20%7Bx%7D%5E%7Bm%7D%20%7D%20%20%3D%20x%20%7B%7D%5E%7B%20%5Cfrac%7Bm%7D%7Bn%7D%20%7D%20)
Using this number,

40 is the base so it will stay same. Remember this is a square root sign so our nth root is 2 so our denominator if the rational exponet is 2.

so our numerator is 1 so

Answer:
Step-by-step explanation:
1 yes
2 yes
3 yes
4 yes
Answer:
352
Step-by-step explanation:
So first you need to subtract 668 from both sides.
c/22 + 668 = 684
-668 -668
---------------------------
c/22 = 16
Then multiply both sides by 22.
c/22 * 22 = 16*22
c = 352
Check-
352/22=16
16+668=684
Answer:
81
Step-by-step explanation: