Pls answer this fast will give brainliest

12

Step-by-step explanation:

n is the number of choices

r is the number of Selections we can make

For Sandwiches:

3 Choices w/ 1 Selections

For Veg.:

2 Choices w/ 1 Selections

For Dessert.:

2 Choices w/ 1 Selections

Multiply All Combinations ∴

i think this could be a possible answer (1 / 84) -1

good luck! : d

i think is g(1)=-1.

hope that i can