Answer:
The first option
Step-by-step explanation:
Well, if it is only 2 customers, I think the answers would be all the choices that are two. Like CD, CC, DC, and DD. I really hope this help you :)
Answer:
If x=5, the solution would be 3.
Answer: Addition, 128
Step-by-step explanation: with any question like this you are to do the opposite of what is tells you to do like when it said the sum your supposed to subtract the two numbers.