Band students are tested on, and required to pass, a certain number of scales during the year. As of today, Roxanne has passed 14 scales, whereas her friend Maddie has passed 4 of
them. Going forward, Roxanne has committed to passing 1 scale per week, and Maddie has
committed to passing 3 per week. At some point soon, the two friends will have passed the
same number of scales. How long will that take? How many scales will that be?