It depends on what happens to the price of the item during the sale which is not stated in your problem. So if it cost 6 dollars and goes on sale it should be 6 dollars.
Put in slope intercept form so the first equation would be y=-x-9 then the second one will be y=-5/2x-16
Answer:
Same shape and sizes
Step-by-step explanation:

<u>Given</u><u> </u><u>2</u><u> </u><u>right</u><u> </u><u>angles</u><u>,</u><u> </u><u>are</u><u> </u><u>always</u><u> </u><u>supplementary</u><u> </u><u>and</u><u> </u><u>congruent</u>