Answer:
1 : 4
Step-by-step explanation:
12c : 48c ( divide both parts by 12c )
= 1 : 4
The 3rd equation, as if you solve for x as shown, you will end up with equation x=8.




Answer:

Step-by-step explanation:

Answer:
4
Step-by-step explanation:
From the chioces give it would be 4
But it is actually 8
X^2-4x-5=0
according viet’s theorem
the roots are 5 and -1