Answer:
-6 ... even though it is not one of the options would be the correct answer.
Explanation:
In order to solve this problem we can take it one step at a time. Sal started Friday morning with 6ft of sausage
6ft
He used 3ft for dinner on Friday night which means he subtracted 3ft.
6ft - 3ft = 3ft
He made another 6ft Saturday morning which means he added to his existing sausage link.
3ft + 6ft = 9ft
Finally, he used 9ft for dinner Saturday Night which means he subtracted 9ft.
9ft - 9ft = 0ft
Therefore, the net change would be -6 since Sal started with 6ft and ended with 0ft during this time.