Hugo sells handmade key chains online. Yesterday, he made 6 keychains in 30 minutes. Hugo wants to make 9 keychains today. If Hugo works at the same rate today, how long will it take him to make the keychains?
+36915 30 min / 6 k = 5 minutes per keychain
9 keychains * 5 minutes per keychain = 45 minutes
