A is the answer i think so
2/5 of the cake are left. Tiffany ate 1/5 and Omer ate 2x the amount, which is 2/5.
3/4. triangle FHE and triangle KMN; triangle GEH and triangle LNM
No, It should be false. Because the scalene triangle it cannot be unequilateral.
Hope it helped you.
-Charlie
Have a great day!
:)