Sarah bought a $320000 house. she pays 20% down and takes out a 30-year loan for the rest. how much is the loan amount going to be?

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?