1st problem:
A = 630 cm
2nd problem:
A = 104 cm
All I can see on the picture you provided.
I think it’s 9+2 because it say sum
Answer: C) Cannot be done
Taking the square root of a negative number is not possible unless you involve complex numbers. If your teacher has not introduced that topic yet, then you just simply say "cannot be done" or something along those lines.
Answer:

Step-by-step explanation:
Amount of kool - aid that the pitcher can hold =
gallons
There are 6 smaller containers in which this kool - aid is to be adjusted.
Also, the volume of the smaller containers is equal to each other i.e. the containers are identical to each other in terms of volume.
To find:
The amount of kool - aid that each container can hold?
Solution:
Volume of all the smaller containers combined = Volume of the kool - aid available
Let the volume of one smaller container = 


of kool - aid is the amount that each smaller can hold.