Nikhil drew a picture of an open greeting card on his paper.
what is the total area of the drawing of the open greeting card?
a. 20 in²
b. 35 in²
c. 40 in²
d. 55 in²

Initially looks confusing because the shape is bent, but if you imaging opening a card then it is just a rectangle.
in terms of the lengths, if the card closes then the "bent" lines must be the same length as the straight lines.  the 7in. is there to confuse you.
the total area is just 5x4 for one half of the card, then another 5x4 for the "bent bit".
answer: c: 40 square inches.