Complex numbers are divided into two parts; real and imaginary parts. The value of Z3 is 
Given that:


Since O is the origin, then:

This means that:

So, we have:

Collect like terms


Hence, complex number Z3 is 
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Ok, so we have to find areas and subtract
area=legnth times widht or base times height
parking space area=17 times 9=153
car=16 times 6=96
subtract
153-96=57
answer is 57 ft^2
The answer is 8. 40 / 31 = 1.29032258. Multiply that by 6 and you have 7.74193548. Round up because you can't buy 7.7 cans of dog food.