Question

add or remove commas, if necessary, until the sentence has correct punctuation. amy santiago brought a snorkel, and flippers into the hot tub.

Explanation:

In a simple list of two items (snorkel and flippers), the comma before "and" is not needed. Commas are used to separate items in a series of three or more.

Answer:

Amy Santiago brought a snorkel and flippers into the hot tub.