Hi,
-15/20
find the GCF of both numbers:
15: 1,3,5,15
20: 1,2,4,5,10,20
The GCF is 5.
Divide the numerator and denomiator by 5-
-15/5 = 3
-20/5 = 4
answer is -3/4
makes sense?
Answer:
B
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
Given
f(x) = 13x - 9 , then

= 
= 
= 
= 13
Answer:
Company A:
c = 40 + 2s
Company B:
c = 20 + 4s
Equal costs => 40 + 2s = 20 +4s => 4s - 2s = 40 - 20 => 2s = 20 => s = 20/2
=> s = 10
And c = 20 + 4s = 20 + 4(10) = 20 + 40 = 60
Step-by-step explanation:

is the answer I can also give you the graph to if you need it, but that's how you would graph it. : ) Let me know if you need the graph