do on excel and show functions please

1. Your lovely wife has decided to buy you a vacuum cleaner for your birthday (she always supports you in your hobbies...). She called your best friend, a manager of vacuum cleaner store, and he has suggested one of two payment plans: She can either pay $100 now or make 12 monthly payments of $10 each, starting from today. What are the monthly IRR and EAIR of the payment-over-time plan? ( 8 points)