Answer:
13. C. 250mm
14. 20 ft
Step-by-step explanation:
For 13, the smallest rectangle is 5x5 (Area of 25). The second one is 5x10 (50). Third is 5x15 (75) and the fourth is 5x25 (100). Adding all those areas together gets you 250 mm.
For 14, the first poster is 4x3, so it has an area of 12 ft. The second poster is 4x2, so it has an area of 8 ft. Add them together since they are side by side and you get 20 ft.
