Exercise 13 Page 218

First, we will write B in roster form. B={0, 2, 4, 6, 8} A union of two sets is the set that contains all elements found in both sets. Therefore, the union of B and C holds all elements that are in both B and C. Note that a union only contains unique values, so if any elements exist in both sets, we will cross out the duplicates. B&={0, 2, 4, 6, 8} C&={2,5,7,10} B ⋃ C &={0, 2, 4, 5, 6, 7, 8, 10}