-78
Step-by-step explanation:
(7-8)(78)
(-1)(78)=-78
Just like any other variable, we complete the same process

Now we can test it, let's say k=4, d=6, and c=2, let's find the value of g

OR
Answer:
8
Step-by-step explanation:
Mary needs 8 boxes to put 96 muffins in dozens so 96÷12 gives you 8
I am sure that this problem cannot be solved.