The following relationship ‘supervises’ is a ________ relationship type

Q18-Q19 are based on the following business requirement for a hotel management system. A hotel can have many rooms and it must have one room. A room (in the database) has to belong to one hotel and only one hotel. A particular room within a hotel has certain features (one king bed or two queen beds, handicap-accessible, etc.). For hotel, name, city, address, contact email, and contact phone needs to be recorded.

Which one of the following is the proper ER Model for the hotel management system?

Report the number of admissions (i.e., “yes” decisions) for each college that has admitted more than two applicants. Rename the total as “Admitted”:SELECT cName, COUNT(*) AS AdmittedFROM applyWHERE decision = “Y”GROUP BY cName_________________________________;

Q24-Q25 are based on the following business requirement for Car-sharing management system. Chicago runs a car-sharing program to reduce the number of cars in the city and curtail pollution. In this program, people share the ownership of vehicles – one car may be partially owned by several people. The number of owners per car may vary and each person can own a different percentage of the car. A person also might invest in ownership of more than one car. Drivers reserve future use of a car; obviously, only one person can reserve a car for any particular time. Participants in the sharing program can reserve any car, even ones they do not share ownership of. 

Which one of the following is the proper Relational Data Model for the HR managment system?

What is the degree of the relationship type in the following ER diagram?

Information for questions 1-3 The following table has data about three countries: A, B, and the U.S. It lists the three countries’ nominal GDP per capita and PPP-adjusted GDP / capita. Countries A and B use their own currencies (we can call them A$ and B$), but we have no information about any exchange rates among these three currencies. All values on the table have already been converted to US$, so they can be compared. You can, and should, compare values that are all in U.S. dollars. GDPs of three countries Country Nominal GDP / capita (in US$) PPP-adjusted GDP / capita (in US$) Country A $ 15,000 $ 28,000 Country B $ 20,000 $ 22,000 U.S. $ 60,000 $ 60,000 A resident of country A travels to country B. She is an average citizen of A, with an income of $15,000. While traveling in country B, she exchanges her A$ for B$ to cover her expenses in hotels, restaurants, gift shops, and so on. While in country B, she will experience a _______ in her standard of living, in that she can afford _______   goods than she could afford at home with the same amount of money. (Hint: look at the PPP corrections for countries A and B: which country has prices more different than the U.S. prices? Or does it?)

A general reaction written as A + 2B → C + 2D is studied and yields the following data: [A]0[B]0Initial Δ[C]/Δt 0.150 M0.150 M8.00 × 10–3 mol/L·s 0.150 M0.300 M1.60 × 10–2 mol/L·s 0.300 M0.150 M3.20 × 10–2 mol/L·s What is the overall order of the reaction?

The reaction 2H2O2 → 2H2O + O2 has the following mechanism:H2O2 + I– → H2O + IO– H2O2 + IO– → H2O + O2 + I– The catalyst in the reaction is: