A catering service offers 11 appetizers, 7 main courses, and 4 desserts. A customer is to select 6 appetizers, 6 main courses, and 3 desserts for a banquet. In how many ways can this be done?

Joanie watched 1 out of three of a movie in the morning

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.