Answer:
The coefficient of k is -6
Step-by-step explanation:
Let x = -2
Let y = 12
y = kx
12 = k(-2)
k =12÷(-2)
= -6
(Correct me if i am wrong)
Answer:
4
Step-by-step explanation:
9:8 = 4x+2:4x
36x = 32x + 16
x = 4
Answer:
1000 years
Step-by-step explanation:
1x10^11 is basically 100 billion
1x10^8 is basically 100 million
so 100 billion divided by 100 milllion is basically 1000
so 1000 years