Answer
a) $T\ $$\underline{C}$ $\ P$
b) $E\ $$\underline{C}$ $\ P$
Work Step by Step
a) We know that 10 pages of a book are contained with the set of pages of the book. Thus, we but a "C" between P, the total pages in the book, and T, the set of 10 pages.
b) Two points on a circular path are part of the set of all points on the circular path, so we put a C between these two sets.