Someone please help me withe this​

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

How do you write y-10=2 (x-8) in standard form