9/21 + 14/21 = 23/21 or 1 and 2/21
Answer:
You didn't post an image.
Step-by-step explanation:
<span>1 cubic foot of water = 62 1/2 lb or 125/2 pounds
So the weight of 29 1/8 or 233/8 cubic foot water is
= 233/8* 125/2= 1820.3125 lbs or 1820 5/16 lbs</span>
All you have to do is times it by 4

can also be written as 2i
where i = √-1

Rationalizing denominator,