You earn 10 points for every coin you collect in a video game. then you find a star that triples your score. write and simplify an expression for total number of points you earn

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)?