The relationship when a stronger nation controls the foreign policy of a weaker nation is called
a) a tributary.
b) colonialism.
c) isolationism.
d) a protectorate.

D (A Protectorate)

Explanation:

A protectorate is the protector of something. In this case a more powerful nation is protecting a weaker nation.

it was seen as enticement to accept british domination.

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13