Answer :
Answer:
100+x
Step-by-step explanation:
Peter starts out with 100 dollars and then gets X more meaning we have to add X to what he originally had and that looks like this 100+x
I hope this helps and please don't hesitate to ask if there is anything still unclear!
Answer: x + 100
we know he has 100, and the unknown amount is x. since he has 100 and an undefined amount, you just add them together as you would with 2 defined amounts
Step-by-step explanation: