Answer: 
Step-by-step explanation:

if it matters then simply further...
4 + \sqrt{4i} = 
Answer:
what should we be finding?
Answer:660 in
Step-by-step explanation:10x11x6=660 in
The number -5 is anything but natural number.
It is an integer (Z) ,a rational number (Q) and a real number (R) .