This question is worth 1 point. A rechargeable battery is pr…

This question is worth 1 point. A rechargeable battery is providing power to a system with 0.94 efficiency. The power goes to an inverter, which changes direct current into alternating current (like from a wall socket) with 0.91 efficiency. This power is used for cooking with a microwave oven with 0.64 efficiency. What is the total efficiency of this system? Answer to the hundredth place.