Advise Michelle of her tax consequences from the following transactions: (a) Donation of $500 to the building fund of her local public school. (b) Donation of $50 to her local public library (as a result, she does not need to pay membership fees of $20 that year to borrow books from the library). (c) Payment of $900 membership fees to the real estate agents' association. Michelle is a professional real estate agent, but she has not been working as one for the last two years following the birth of her child. However, she maintains her membership of the association as she intends to go back to work one day.