Um... I beleive its A due to 2x times 3x with an exponet of 2 would make 6x with the exponet of 2 then you would add 5
Answer:
P = 95%
Step-by-step explanation:
The average is:

The standard deviation is:
.
We want the probability that the red light lasts between 2.5 minutes and 3.5 minutes
This is:

Now we must transform these values to those of a standard normal distribution to facilitate calculation by using the probability tables.

This is:
---------- (By the symmetry of the standard normal distribution)
When you search for the normal standard table, you get the following value:

Answer:
I’m not sure if you want me to solve it but I’m going to do that.
Explanation:
5W +7=127
-7 -7
5W=120
5W/5=120/5
W=24
Hope this helps!!