Since, both the events are independent.
So, P(A+B) = P(A)×P(B)
a) P( Head & Getting a 2 ) = P( head ) × P( Getting a 2 )

b) P( Even number & Tail ) = P( Even number ) × P( Tail )

Hence, this is the required solution.
It seems like it is dividing by 4 every time.
Then, the answer is 1/4/4/4 which is approximately 0.016
Calculating the unit rate for Tree 2 we have the following

When simplified the unit rate is

This is 2.5 inches per week. Compared to Tree 1,
SEE ATTACHED IMAGE TO OBSERVE THE GRAPH OF THE FUNCTION.
For this case, the first thing we should see are the cut points with the x axis.
We note that the graph cuts to the x-axis at x = -2
Therefore, x = -2 is the real solution to the polynomial.
Also this function:
x3 + 6x2 + 12x + 8
It can be rewritten as:
(x + 2) ^ 3
From where we conclude that its roots are:
x = -2 (with multiplicity 3)
Answer:
the equation x3 + 6x2 + 12x + 8 = 0 have:
x = -2
As a real solution with multiplicity 3.