5/8 = .625
531.25 / .625 = 850
850 - 531.25 = $318.75
It has everything a sentence needs. Complete sentence.
Answer:

Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
<em>See comment for complete question</em>
Required

First, calculate the probability that the none of the 4 selected is working;



Using the complement rule, the probability that at least 1 is working is:

This gives:


I am pretty sure the answer is the second option
Answer:
264 cubic meters
Step-by-step explanation: