Answer:

Step-by-step explanation:
answer =2
You would have to use the quadratic formula because it’s not a perfect square
I believe the answer is: y = -14x - 6
If nthe shop has a mark up rate of 50% and they cost 300 to buy you multiply 300 by 50% convert 50% to decimal
so you do .5*300=150
then you add 150 to 300 which means that the shop sells the skis for 450 dollars.