See the attached picture:
14x5=70
15x10=150
Answer- 7:15
The two-dimensional figures would be;
Rectangles and Triangles
Rectangles would be front, back and bottom
Triangles would be the 2 right and left sides.
The decimal of 2.1 is greater than 2.0 but less than 2.42
270 I think but I’m not 100% sure