Elaine is at the local grocery store. She buys 6 apples and 3 pears for $3.45. Peter bought 3 apples and 6 pears at the same store and paid $3.30. How much is an apple? How much is the pear ?

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)?