Which of the following is part of north america?

1 u. s.a
2 iceland
3 canada
4 japanese islands
5 argentina
6 caribbean islands
7 greenland
8 mexico
9 antarctica

are their options?

otherwise i can't

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali

panamal canal treaty and iran hostage crisis hope this

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27