so basically this is a test with 15 question ( putting 5 rn will add the rest in the next question) I appreciate any answers even if you don't answer all of them <3 (this is pt 3 the final screenshots)

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%.

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

∆red ≅ ∆ by rule will give brainiest if possible