So (m+n)/2= 7
To find m+n, multiply both sides by 2
m+n=14
Final answer: C
Answer:

Step-by-step explanation:
Given:


We know that, conditional probability of B given that A has occurred is given as:
. Expressing this in terms of
, we get

Plug in the known values and solve for
. This gives,

Therefore, the probability of events A and B occurring is
.
40+60=100
I hope this helps^^
Answer and Step-by-step explanation:
1) 12*12 = 144
2) 2*2*2 = 8