Answer:
A) a+bi
Explanation:
Rectangular form of complex numbers is written as a+bi, where a and b are integers.
Rectangular form always has an integer piece, a, and a complex piece, bi.
 
        
             
        
        
        
Answer 3.1
Here's the formula: 
V=
H=3
3 ·   ≈ 3.08333
 ≈ 3.08333
rounded to : 3.1
(P.S. I also Used a calculator)
 
        
             
        
        
        
Answer:
it's G) 
Step-by-step explanation:
 
        
             
        
        
        
Answer: 7 hours left! 
Step-by-step explanation:
She had used up 12 hours and 45 minutes. 7 hours and 15 minutes left, but if you're including the minutes, then it's 7 hours and 15 minutes. Good luck! :D