Answer:
The different variable in C is 21213316700.
Explanation:
Given value:
Total value = letters + underscore value
Total value = 52 + 1
Total value =53
choice for first character = 53 letters +10 digits
first character = 63
choice for remaining characters
So,
Variable number With one 1 character = 53
Variable number With 2 character = 53 × 63
Variable number With 3 character = 53 × 63²
Variable number With 4 character = 53 × 63³
.
.
.
Variable number With 7 character = 
Total difference variable = 53 + 53 × 63+ 53 × 63²+ 53 × 63³+....+ 
Total difference variable = 53(1 + 63 + 63²+ 63³+ .... +
)
Formula:

Total difference variable

Answer:
The correct answer is "Router".
Explanation:
In networking, routers is one of the main hardware which is used to direct the data traffic on a LAN system.
The router also works as an interconnection system for two or more than two networks. Routers mostly work between the internet and computer which directs the data to its right path.
It works between the computer system in a premise to make the networking possible through a LAN by using switches for communication between two or more than two devices in a LAN across the internet.
Hence, the most appropriate answer is the router.
In python:
total = 0
i = 0
while total <= 100:
number = int(input("Enter a number: "))
i += 1
total += number
print("Sum: {}".format(total))
print("Numbers Entered: {}".format(i))
Answer:
I believe the answer is B. Puede