Answer :
Answer:
27
Step-by-step explanation:
Each light has 3 options for what it can be (red, yellow, green) so you multiply 3*3*3 to account for any combination of the 3 colors.
Answer:
27
Step-by-step explanation:
Each light has 3 options for what it can be (red, yellow, green) so you multiply 3*3*3 to account for any combination of the 3 colors.