Answer:
(3,5]
Step-by-step explanation:
The answer is 50, just divide 10 and 2, you get 5 and multiply the 5 with the 10
4
11
C²=23
2C=0
C=2
Substitute C=2 in the first equation 2C=23
2C=23
C=11.5
Approximately C=11
