Can anyone please help me with this.

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%.

Two lines parallel to the same plane are parallel to eachother

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?