A customer placed an order with a bakery for muffins. The bakery has completed 37.5% of the order after 81 muffins. How many muffins did the customer order?

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?