Hi, there-- THE PROBLEM: Space shuttle astronauts each consume an average of 3000 calories per day. One meal consists of 1main dish, 1 vegetable, and two different desserts. The astronauts can choose from 10 main dishes, 5 vegetables, and 12 desserts. How many different meals are possible? A SOLUTION: There are 10 ways to choose a main dish. There are 5 ways to choose a vegetable. There are 12 ways to choose the first dessert. There are 11 ways to choose the second dessert. We multiply 10 * 5 * 12 * 11 = 6600 There are 6,600 different meals possible. Hope this helps! Feel free to email if you have any questions about the solution. Good luck with your math, Mrs. F math.in.the.vortex@gmail.com