Please help me find the solution of Exercise 2.1 to Exercise 2.8 Thanks

Exercise 2.6. We consider children and their {birth} mothers. a} Does the assignment child to their birth mother constitute a function (in the sense of Definition 2.8 on page 22)? b) Does the assignment mother to their children constitute a function? c} In the case where the assignment is a function, what is the domain? d) In the case where the assignment is a function, what is the range? Exercise 2.7. A bank offers wealthg customers a certain amount of interest, if theg keep more than 1 million dollars in their account. The amount is described in the following table. dollar amount .1: in the account interest amount a: