X is any number between -1 and 6.
Numbers x can be:
x=-1
x=0
x=1
x=2
x=3
x=4
x=5
x=6
Helloo:)
it’ll be loge (100) because ln = loge
(I’m not sure how to explain this, but I hope it helps:)!
By definition of conditional probability,

The inclusion-exclusion principle tells us

Then

Answer:
25 percent off. I think, tell me if i am wrong.