Answer:
total number of sheep in the farm = 28
6 = 168
Step-by-step explanation:
i) let the number of all sheep in the farm be x.
ii) 28 sheep were tagged.
iii) 18 sheep were observed and 3 were found to be tagged.
Therefore the ratio of tagged to sheep to the number of sheep observed
= ![\frac{3}{18} = \frac{1}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B18%7D%20%3D%20%5Cfrac%7B1%7D%7B6%7D)
iv) therefore we can apply the ratio found in iii) as follows
![\frac{number\hspace{0.15cm}of\hspace{0.15cm}sheep\hspace{0.15cm}tagged}{total\hspace{0.15cm}number\hspace{0.15cm} of\hspace{0.15cm} sheep} = \frac{28}{total\hspace{0.15cm}number\hspace{0.15cm} of\hspace{0.15cm} sheep} = \frac{1}{6}](https://tex.z-dn.net/?f=%5Cfrac%7Bnumber%5Chspace%7B0.15cm%7Dof%5Chspace%7B0.15cm%7Dsheep%5Chspace%7B0.15cm%7Dtagged%7D%7Btotal%5Chspace%7B0.15cm%7Dnumber%5Chspace%7B0.15cm%7D%20of%5Chspace%7B0.15cm%7D%20sheep%7D%20%20%3D%20%5Cfrac%7B28%7D%7Btotal%5Chspace%7B0.15cm%7Dnumber%5Chspace%7B0.15cm%7D%20of%5Chspace%7B0.15cm%7D%20sheep%7D%20%3D%20%20%5Cfrac%7B1%7D%7B6%7D)
∴ total number of sheep in the farm = 28
6 = 168
Where are the choices I forgot to put them
They are the equilateral triangle,the square,and the regular pentagon
Hope my answer has helped you in your studies! <3