It’s: -31
when you are simplify this expression you get -31
C. Plumber A and Plumber B will both charge $135 if they each work 2.5 h.
If this is an IXL there should be a calculator for the lesson. This will help with your answer, if it doesn’t I’m sorry I couldn’t help.
The answer is 1:6.
I wrote down the solution in the picture.
Answer: LAST OPTION
Step-by-step explanation:
The complex numbers shown have the form:

By definition, the distance can the distance of the complex number from the origin on the complex plane can be calculated with the formula shown below:

Substitute values of each option. Then:
1) 
2) 
3) 
4)
(CORRECT OPTION)