Instructions: Attempt any five (5) questions a). Explain what cardinality ratio specify (8 marks)
Q1
b). Discuss what data model means and list the types of data model used in database. (12 marks)
20
Marks

Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)

If joey was single and his taxable income was $9,500, how much would he pay in taxes each year?

Worth 50 points answer them bc i am not sure if i am wrong