Aprotein mix claims to contain a bonus of 20% more mix than the usual size container. if the bonus size contains 12 ounces of mix, what is the usual size container?

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)?