Use r = 2

When r + 4(2 + r) – 12 =

Can some one me with these questions

Can someone me with these two circle theorem questions asap?

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)?