Ethan had 18 ounces of fish food. He fed his clownfish ounce of fish food every day
until all the fish food was gone.
For how many days did Ethan feed the fish food to his clownfish?
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This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?