allen's rhombus is 5 squ.are inches. if you want to make the side lengths 3 times larger, you have to multiply by 9.
think about it this way. a rhombus can be a square. so, if allen's square is 5 square inches, then draw a picture. you will see that in order to make all of the sides *3, you must multiply by 9.
5*9=45 so C is correct
if u have any questions comment
