I believe it is proposition
A=3
B=4
C=5
Substitute 3 in for 'a' in the equation, and 5 in for 'c' in the equation to get 17.
Answer:
December at -10
Step-by-step explanation:
first you rule out all positive numbers
then you finder the biggest number with a negative side and that is you lowest temperature
5 C + 3 < 28 a - 4 C - 214
a>9c +31
------------
28. 4
C >28a-21
------
9
