The domain is all real numbers
The correct answer to this question is "120 ways"
Main Courses consists of Beef, Pork Roast, Duck, Quiche (4), Vegetables consists of Broccoli, Carrots, Potatoes (3), Beverages consists of Coffee, Tea, Milk, Soda and Shakes (5), Desserts consists of Ice Cream, Brownies (2)
The total number of ways can be solved as: 4 * 3 * 5 * 2 = 120
First you take the area,
4 x 2 = 8 cm
Then you take 72 cm and divide it by 8 cm to get your length
So the answer for the length is 9 cm
-5= -5x-10
Plus 10 from both sides
5=-5x
X = -1