Answer:
Neither one is correct. 512/53 equals 9 35/53. The reason that I know this is because 53 goes into 512 9 times and your left with 35 and you just put the 35 over 53.
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 think the club made 3 pies.
Step-by-step explanation:
64 divided by 8 is 8. And 8 minus 5 is 3.