Answer:

Step-by-step explanation:
We are given the two functions:

And we want to find:

So, by substitution, we acquire:

Distribute:

Simplify:

Answer:
92
Step-by-step explanation:
You do (9x8) + (5x4). 9x8 = 72 and 5x4=20. add 72 and 20 and get 92!
FOIL first outer inner last it’s distribution
Answer:

And then replacing in the total probability formula we got:

And rounded we got 
That represent the probability that it rains over the weekend (either Saturday or Sunday)
Step-by-step explanation:
We can define the following notaton for the events:
A = It rains over the Saturday
B = It rains over the Sunday
We have the probabilities for these two events given:

And we are interested on the probability that it rains over the weekend (either Saturday or Sunday), so we want to find this probability:

And for this case we can use the total probability rule given by:

And since we are assuming the events independent we can find the probability of intersection like this:

And then replacing in the total probability formula we got:

And rounded we got 
That represent the probability that it rains over the weekend (either Saturday or Sunday)
You cant simplify it anymore because it is not possible