Answer:
I believe the answer would be B. 9.1
Step-by-step explanation:
I am not 100% sure this is correct since I haven't done a problem like this in years but i'm like 90% sure.

Therefore, a is 7 aka real part and b is 19 which is imaginary part.
Answer:
The wright answer is 16.33 inches
Answer:
No, It is rational
Step-by-step explanation:
An number with a finite number of decimal point/numbers can be rational unlike numbers that repeat on forever like the number pi