288 is your answer
Hope this helps :) have a good day
All u need to do is give branliest then i will answer your question
Answer:
-9i. if 6 plus 3 = 9 and the six was a negative plus a positive 3 it's -9 and the 3 had any I attached do it's -9i
Can you please and comma's? Without commas everything is confusing.
Answer:90 degrees
Step-by-step explanation:
Angle b is a right angle
