(3 - i) + (1 - 2i)
= 3 + 1 - i - 2i
= 4 - 3i
He had 160$ when he first started
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Answer:
The third book cost $9.03
Step-by-step explanation:
Distribute the negative sign

Combine like terms
-9x^2 + 7x^2 = -2x^2
9x - 3x = 6x
13 - 6 = 7

<u>Answer</u>
