Answer:
7.9%
Step-by-step explanation:
568.01/7190=0.079=7.9%
5 is the answer because it is a full number
Answer:
192
Step-by-step explanation:
To find how many phones are expected to be defective, we need to represent the values in a fraction.

x = number of defective phones
Now we can solve this using algebra.
To get the value of x we need to multiply both sides by 8000 to leave x alone.



So around 192 cell phones are expected to be defective out of 8000 phones.
36 should be added to both sides because 12/2= 6 then you square 6 to get 36 and that should be it.