A stock fell 80 points on Monday and rose 65 points on Tuesday. By how much has the value of the stock changed over the two-day period?

4, -4 is the other point it would pass through

Volume is length times width times height so
20 times 8 times 30 which is 4,800
surface area is ph (p is perimeter of base), h is height.
so perimeter would be length+length+width+width so 20+20+8+8 which is 56. so multiply 56 times 30 which is 1680. hope this !