Answer:
7. D. 130² ft.
8. She can feed 6 friends.
9. There are 7 trees in each row.
10. B. 490.
Step-by-step explanation:
For no. 8
2x + 1°+ 33° = 90° { Being complementary angles }
2x + 34° = 90°
2x = 90° - 34°
2x = 56 °
x = 56° / 2
x = 28°
For no. 10
5x + 12 = 6x - 10 ( being vertically opposite angles)
6x - 5x = 12 + 10
x = 22
Hope it will help :)❤
