Answer:
Step-by-step explanation:
(8 - 8i) + (1 + 6i)
8 + 1 - 8i + 6i
9 - 2i
6/7x+5/2y
I actually don't know
C
its D
h(-7)= 5.7-19(-7)
h(-7)=5.7+133
h(-7)= 138.7