If the rice is 3,150 and the frog is 0, if the rice is 3,000 and the frog is 80, if the rice is 2,600 and the frog is 180, if the rice is 2,100 and the frog is 300, if the rice is 1,500 and the frog is 420, if the rice is 500 and the frog is 500, and if the rice is 0 and the frog is 520. What is the revenue earned at this combination's table of products? What is the revenue maximising combination of products if the price of rice changed to 10 per pound