Answer: The number of possible outcomes = 9
List are as follows :
BC,BBr, BCa, CS, CBr, CF, FS, FBr, FCa.
Explanation:
Since we have given that
Number of entrees = 3
Number of vegetables = 3
Total number of possible dinners is given by

Types of entrees are as follows:
Beef (B)
Chicken (C)
Fish (F)
Types of vegetables are as follows :
Spinach (S)
Broccoli (Br)
Carrots (Ca)
List are as follows :
BC,BBr, BCa, CS, CBr, CF, FS, FBr, FCa.