Final answer:
To calculate the number of different nut truffles, multiply the number of options for each choice: 2 (kinds of nuts) * 10 (kinds of chocolate) * 2 (kinds of sauce) = 40.
Step-by-step explanation:
To find the number of different nut truffles they can make, we can use the concept of combinations. Mandy can choose 1 kind of nut from 2 options, 1 kind of chocolate from 10 options, and 1 kind of sauce from 2 options. The total number of different nut truffles is the product of the number of options for each choice:
Number of different nut truffles = 2 (kinds of nuts) * 10 (kinds of chocolate) * 2 (kinds of sauce) = 40
Therefore, they can make 40 different nut truffles.