Kirsty needs to hire a plumber to fix her house. The plumber charges $242_5$ dollars for every hour of labor and $367_{8}$ dollars for equipment. If the plumber works for $3.5_{10}$ hours, how many dollars (in base ten) will Kirsty owe the plumber?
+6 The equipment will equal 247 dollars in base ten and the money per hour will be 72. So the answer is 3.5*72+247=499.
