Chapter 11 - Counting Methods and Probability Theory - 11.1 The Fundamental Counting Principle - Exercise Set 11.1 - Page 692: 1

$80$

The number of ways in which a series of successive things can occur is found by multiplying the number of ways in which each thing can occur. ---------- 1. the first course can be chosen in 8 ways, 2. the second course can be chosen in 10 ways. Applying the Principle, the total number of meals is $8\times 10=80$