Why were japanese americans held in internment camps?
a) some japanese americans had been found guilty of planning an attack on the united states.
b) at least one japanese american spy had sent photos of pearl harbor to japan before the attack.
c) many americans feared they were involved in spying on the united states.
d) many japanese americans had been caught spying on the united states.

The answer is C

Americans were afraid Japanese civilians were spying on the Americans

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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