Answer:
12 sandwiches
3 slices of cheese
Step-by-step explanation:
I would say that the last one would be the most accurate.
The correct answer is B = -1
10(1 + 3B) = -20
10 + 30B = -20
-20 - 10 = -30
30B = -30
B = -1
Hope this helps :)
Answer:20
Step-by-step explanation: