A jewelry maker works 6 days a week, makes 15 necklaces per

Last updated: 7/12/2022

A jewelry maker works 6 days a week, makes 15 necklaces per day on average, and charges $18 a necklace. If she lowers her price to $10 a necklace, by how many necklaces per day on average must she increase her production to make the same amount of money per 6-day workweek?