There are 108° in each interior angle of<span> a </span><span>regular pentagon.</span>
ANSWER
My answer is in the photo above
Um.. Both of those equations are the exact same. Divide both sides of the first equation by 6. You get:

That is the exact same as the second equation. This system has an infinite number of solutions. 5x - 7y = -1 is a line, so basically every point on that line is a solution to the system.
For example,

and

would work, but so would

and
New annual renter's insurance premium = 325(1 + 0.18) = 325 x 1.18 = $383.50