Hello may I please have help with these? Thank you

7. The probability that a certain make of car will need repairs in the first six months is 0.3. A dealer sells five such cars. What is the probability that at least one of them will require repairs in the first six months? 8. A lot of 1000 components contains 300 that are defective. Two components are drawn at random and tested. Let A be the event that the first component drawn is defective, and let B be the event that the second component drawn is defective. a. Find P(A). b. Find P(B | A) c. Find P(A and B) d. Are A and B independent? Is it reasonable to treat A and B as though they were independent? Explain