(a(i))[1]
Fill in the Venn diagram to show this information.
(a(ii))[1]
Complete the description of the set $B$.
(a(iii))[1]
Find $n(A \cup B)$.
(a(iv))[1]
List the elements of $A' \cap B$.
(b)[2]
Find the lowest common multiple (LCM) of $140$ and $770$.
(c)[2]
A rectangular field has dimensions $450\text{ m}$ by $306\text{ m}$. The entire field is to be split into identical square plots with no land left over. Find the greatest possible side length of each square.