Are the graphs of the lines in the pair parallel? y= 4x+6 -15+3y=-45

If a boat travels 3 miles in 1.5 hours how far will it travel in 1 hour

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?