15 x 3 = 45 - 5 = 40
The number will be 15.
Hope this helped.
I believe it would be c
This is because when you have to find a line that is perpendicular you have to flip the nominator and denominator and then change the sign so if it’s negative switch it to positive
I hope that makes sense and I hope it is right
The answer is 9-11i
5+4=9
-3i+-8i=-11i