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Manuel has four pieces of bubble gum. His friend gives him nine more pieces. By what percent has Manuel's amount of bubble gum changed? **STEP BY STEP EXPLANATION PLEASE AND THANK YOU!**

Respuesta :

Answer: 13 is how much he has now, so 13%.

Step-by-step explanation:You are welcome!

here is how i figured it out.

4+9=13.

so if the answer is 13, and you count up four to nine fingers. you get 13 again, so the percentage will be 13%. May i get brainliest?

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