Help me plz tysm

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%.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Need showing work for this problem 56.25 ×25.80