<h2>
Answer:</h2>
<h2>
Step-by-step explanation:</h2>
If resistors are in series, so the current 
is the same in all of them. In this problem we have four resistors. So, we can get a relationship between the Equivalent resistance of series combination and the four resistors as follows:
is the total resistance 
. Moreover:
Therefore:
Answer:
201,600
each item cost $806.40
$1169.28
Step-by-step explanation:
To answer this problem, one way is to use the calculator and add directly the two numbers and get the average between the two. The answer is 25/77. We can also get this number by getting the LCM of the denominators which is 77. 2/7 is equal to 22/77 while 4/11 is equal to 28/77. 0.5*(22 +28) is equal to 25. Hence the answer is 25/77.
