Answer:
1 + 1 - 0 = 1
When you add 1 + 1, you receive 2. Then when you subtract 1, you are left with 1.
Answer:
4n - 3
Step-by-step explanation:

5. . 1
---- - -----
6. . 2
5. . 3
----- - -----
6. . 6
5-3
-------
6
2
-----
6
= 1/3
B
Answer:
310.86ft²
Step-by-step explanation:
30/2 = 15
3.14*15² = 706.5
30+3+3 = 36
36/2 = 18
3.14*18² = 1017.36
1017.36 - 706.5 = 310.86
Hope it helps