Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)
You should already know this:

You should also know this:

So plugging in both of those into our identity, we get:

Simplify the denominator on the LHS (Left Hand Side)
We get:

LHS = RHS
Therefore, identity is verified.
A) probability of she not drawing a yellow beads or green beads is probability of she drawing red or white. Red+ white = 30. There are total of 100 beads. That means that asked probability is:
30/100
b) its oposite that result from a) yellow beads + green beads = 70
probability is: 70/100
2x = 360/4
x = 90 / 2
x = 45
Hope this is the answer you are looking for!
she has cancer, sorry but were gonna have to let kelly down
115 divided 23/4 is equivalent to 115 x 4/23= 20