The answer to the question is B.
55 - 35 = 20
80 x 0.25 = 20
Therefore, you save money after 80 miles.
This equates to the division problem 54/3, which is equal to 18.
It would take them 18 weeks to frame all 54 houses.
First, let's convert the mixed fraction into an improper fraction (trust me, mixed fraction are pretty much the worst things to deal with, especially with higher level math):


Then, to subtract, since you need a common denominator, I would multiply the second fraction by 2 to get:

Now that we have a common denominator, we are ready to subtract:

Since that's the most simplified form, and you have been asked the question in a mixed fraction form, let's convert that to a mixed fraction. The remainder of the numerator divided by the denominator is 1, and the quotient is 3. The denominator stays the same. So, this is what results:

And that's your answer:

Hope this all makes sense. If anything doesn't, feel free to tell me!
Answer:

Step-by-step explanation:
An easy way to find the GCF of different numbers is to list out all of their factors. In this case, the coefficients share multiple factors, but the largest is 9.
Additionally, when dividing variables with different powers you subtract the exponents. So, if you were to divide
the final answer would be
because 3-2 is 1. So, to find the GCF of like variables find the biggest number that can be subtracted from all of them. In this case, that is 2; therefore, the GCF of the variables is
. Put the 2 parts together for the final answer
.
Multiply everything by 180 first, to cancel out fractions if you want.
so, 120x - 45 = -36x +20
then, solve, 156x = 65
x = 65/156
simplify to x = 5/12