Answer:

The answer is 16 hours.

Explanation:

If you multiply 40 x 16 it equals 640 muffins.

Example:

40 muffins x 16 hours = 640 muffins

or

40 x 16 = 640

The Answer Is N=1/4

Meaning,

Meaning, n=1/4 because this equals 4.

it's not a question