Answer
Sum of the number and 5: $z+5$
Reciprocal of the sum of the number and 5: $\frac{1}{z+5}$
Work Step by Step
Part 1: Since the number is z, the sum of the number and 5 means that the required expression is $z+5$
Part 2: The reciprocal of the sum of the number and 5 means that we need to take the reciprocal of the expression in part 1. Therefore, the required expression is $\frac{1}{z+5}$