5 he used 5 hours or however it is out but it’s “5”
I’m pretty sure it would be C
I have seen you ask this question twice before, so I will give you the answer that HugoD gave you:
In mathematics, "of" is translated as a multiplication.
So, you have :

.
Answer:
because this figure does not have two parallel sides
I'm Sorry for by bad English but I am italian
answers 800 cm k=240 ZI=173°