Add or Subtract as Indicated $a+b i$
- $(8+8 \mathrm{i})-(-9+\mathrm{i})$ A) $17+7 \mathrm{i}$

Multiple Choice

Add or subtract as indicated. Write your answer in the form $a+b i$ .
- $(8+8 \mathrm{i}) -(-9+\mathrm{i})$

A) $17+7 \mathrm{i}$
B) $-17-7 \mathrm{i}$
C) $-1+9 i$
D) $17-7 \mathrm{i}$