I need a hand with this one

Step-by-step explanation:

First Let's rewrite the equation.

Now lets simplify.

We will start by distributing.

That will now look like:

Now we will simplify even further.

To do so we must combine like terms!

10 plus negative 7 is equal to 3.

is the first part of our equation.

Now we will want to isolate the x values.

To do so we will want to subtract 3 from both sides.

-6 minus 3 is equal to -9

Our new equation is

Now we will subtract 3x from both sides.

2x-3x= -x

Our new equation is:

Now we will divide both sides by 1, this way both sides will be positive.

That equals:

Thus, Our answer is !

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.