Answer:
I think it the first one is
Answer:

Step-by-step explanation:
A complex number is a number which has some real part and some imaginary part.
Standard form of a complex number is represented as

Where
is the real part,
and
is the imaginary part.
And 
Given complex number:

Hence, the standard form is
.
Answer:
do you have pictures that I can see
50 inches 4/5*x=40
x=40/(4/5)
x=40*5/4=200/4=50 x=50 inches