Can u please help me

The answer is A, 40°. This is because you take the 100° that is given to you, and we know that all straight angles would add up to 180°. This means that both angles have to be 40°, as they are equal length (implied with both numbers being "x")

A ) -9 - 13 i.

Step-by-step explanation:

Given  : (4 + 4i) - (13 + 17i) .

To find : subtract the following complex numbers.

Solution : We have given (4 + 4i) - (13 + 17i) .

On removing the parenthesis

4 + 4 i - 13 - 17i.

On combine real part and complex part.

4 - 13 + 4i - 17 i.

-9 - 13 i.

Therefore, A ) -9 - 13 i.