3 because if you think about it, it's pretty much asking
what number multiplied by 9 will give you 27.
or 27 divided by 9.
Area=legnth times width
we notice this is a special case
(a+b)(a-b)=a^2-b^2
area=(a+3b)(a-3b)=a^2-9b^2
area=a^2-9b^2
Y=7-2x, x belongs to the reals.
We are given
speed=0.013 m/s
so, we can also write as

now, we can change it into miles/hour
so, we know that
1mile =1609.34 m
now, we can find for 1m

we know that

we can write our speed as

we can plug values

now, we can simplify it
so, we get
...........Answer
B. 508,372 because I think it is in my head