Final answer:
The 100th term for the explicit formula an = 10 + 5n is 510.
Step-by-step explanation:
The formula given is an = 10 + 5n, where n represents the term number. To find the 100th term, plug in the value of n = 100 into the formula:
an = 10 + 5(100) = 10 + 500 = 510
Therefore, the 100th term is 510.