I am travelling with my cousins to Macau from Panda Hotel this Sept.

How to go there from Panda and going back to our hotel? (first time to go there). How early can we go there? How much would it cost for 4 adult and 1 kid.
Were planning to visit. A-Ma Temple, St. Paul and St. Domingo Church and last Venetian and go back. Is there a free bus to go around in Macau? How long it will take to visit all the places?
How can we visit each place? Is taking taxi is advisable? How much it would cost?
And, is it possible to visit Buddha first or not. How to go there?
Your help will be gladly appreciate.
Thank you!