Answer:

Step-by-step explanation:

















(7 + i) - (6 - 2i) = 7 + i - 6 + 2i = 1 + 3i
Answer: 11.8 km
Step-by-step explanation:
The resulting figure is a right angled triangle shown below

you can find the length of the side of a square by square rooting the area, which is 225. the square root of 225 is 15