Answer:
first identify the like terms;
(2-7i)+(3+9i)
(2+3-7i+9i)
5+2i
It would be the last one to add up to 180 witch is a triangle or supplementary
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4-p=-4p+4
4-p+4p-4
3p
Step-by-step explanation:
that iw the answer
Answer:

Step-by-step explanation:
So we know that:

To reflect across the <em>y-axis</em>, instead of x, use -x. Therefore:

Simplify:

And that's our answer :)