What's the product for (5v-1)(4v+3)

Will mark brainliest. when ∆rst is translated 4 units down, what are the apparent coordinates of t’?

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%.

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²