Study the E$-$R diagram given below. Based on this E$-$R diagram, answer the following questions:

a$)$ How many PROJECTS can an employee work on$?$

b$)$ What is the degree of includes relationship?

c$)$ Are there any associative entities on this diagram? If so$,$ name them.

d$)$ How else could attribute Skill be modelled?

e$)$ Could TASK be modelled as an associative entity?

f$)$ Employee's earnings are calculated based on a different hourly pay rate for

each project. Where on the E$-$R diagram would you represent the new

attribute Hourly pay rate?