For dinner at a restaurant, there are x choices of appetizers, y main courses, and z+ 1 choices of dessert. How many total possible choices are there if you choose 1 appetizer, 1 main course, and 1 dessert for your meal?
Choose one:
A) x + y + z + 1 B) xyz + xy C) xy + z + 1 D) xyz + 1 E) xyz + 1/2
x appetizers,   y main courses,   z+ 1 dessert   Required: 1 appetizer, 1 main course, and 1 dessert   Number of ways possible = xC1*(z+1)C1*yC1 {NC1 = N! / (N-1)!*1! = N}   Hence, number of ways = x(z+1)y = xyz + xy   Correct Option: xyz + xy
<result>B</result>
For dinner at a restaurant, there are x choices of appetizers, y main courses, and z+ 1 choices of dessert. How many total possible choices are there if you choose 1 appetizer, 1 main course, and 1 dessert for your meal?