Can somebody answer these questions i will mark branliest

Abuyer pays a deposit to the seller in advance before completing the transaction. which term best defines this? a. down payment b. earnest money c. mortgage application fee

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.