Answer:
:
pls, don't do that
Step-by-step explanation:
Answer:
$60
Step-by-step explanation:
12/8 = x/40
40(12/8) = x
60 = x
His monthly bill before he installed the new windows was $339.074...
<u><em>Explanation</em></u>
Suppose, his monthly bill before he installed the new windows was
dollar.
As his energy bill was decreased by 7.1% per month after installation, so <u>the amount of bill decreased</u>
dollar
Given that, his new energy bill was $315. So the equation will be...

So, his monthly bill before he installed the new windows was $339.074...
Answer:
unproportional
Step-by-step explanation:
Answer:
The first choice.
Step-by-step explanation:
The area is multiplied by (1/2)^2 = 1/4.
This is because lengths are one dimensional and areas are 2 dimensional.