The vertical lines are absolute values, the number in between them, if negative turns positive.
area square: 9in×9in = 81in
area triangle: [9in×(13in-9in)]/2
= (9in×4in)/2
=36in/2
=18in
green area: 81in+ 18in= 99in
Answer: d) 983 11/15 cm3
just multiply all the values because it's volume.
hope this helps :)