Step: Expressing the set B in roster form
In roster form, the elements of the set are written inside a pair of curly braces and are separted by commas.
Given, B = {All even numbers from 15 to 26}
Even numbers from 15 to 26 are 16, 18, 20, 22, 24 and 26.
Hence, the roster form of set B = {16, 18, 20, 22, 24, 26}.