I’ll check it give me a minute I’m mainly writing this so I know to come to this just sec
Answer:
no 2. cube a' will be smaller because it was multiplied by a fraction
no 3. c
If you would graph the triangle, one of the legs would be 8 and another would be 5 and the area of a triangle is bxh/2 so the equation is 8x5/2=20un².
Hope this helped! :)