Answer:
![\frac{\pi }{\sqrt[3]{27} }](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cpi%20%7D%7B%5Csqrt%5B3%5D%7B27%7D%20%7D)
Step-by-step explanation:
The third one
Any number with pi is irrational
#3
<span>The marketing firm is observing and measuring specific characteristics of the subjects, but is not attempting to modify the subjects.</span>
The answer is 2/3 times as heavy as the dog.
Since we are looking for the weight of the cat in relation to the dog's weight, we have to divide the cat's weight by the dog's weight.
5 1/2 = 5.5, 8 1/4 = 8.25.
5.5 / 8.25 = 2/3.