Pilar has 40 shells in her collection. She goes to the beach. She
collects 6 more shells in the morning and 3 more shells in the
afternoon.

What is the percent change in Pilar's shell collection
from the beginning of the day to the end? Show your work.

49/100 is the usual of a percentage. She already has 40 shells. So there is a 9% different change in her collection. If they ask for a positive or a negative change, it is a positive change since you are adding by 9% to the collection.

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Pilar has 40 shells in her collection. She goes to the beach. She collects 6 more shells in the morning and 3 more shells in the afternoon. What is the percent change in Pilar's shell collection from the beginning of the day to the end? Show your work.

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Pilar has 40 shells in her collection. She goes to the beach. She
collects 6 more shells in the morning and 3 more shells in the
afternoon.

What is the percent change in Pilar's shell collection
from the beginning of the day to the end? Show your work.