Answer:
The graph of these two lines will result in PARALLEL LINES, therefore there is NO SOLUTION for this system of linear equations.
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X and y because they are the numerator and denominator
39.99*.3=
$12 off of the original price
17.99*.06=
$1.08 is the sales tax
17.99+1.08= the total price
$19.07 is the final answer
19 dollars and seven cents is what he paid for the headphones.
The tax was 1 dollar and eight cents.