I need help help on a,b,c and d for these two word problems

Your flight has been delayed: At Denver International Airport, 87% of recent flights have arrived on time. A sample of 12 flights is studied. Round the probabilities to four decimal places. Part 1 of 4 (a) Find the probability that all 12 of the flights were on time The probability that all 12 of the flights were on time is X Part 2 of 4 (b) Find the probability that exactly 10 of the flights were on time. The probability that exactly 10 of the flights were on time is Part 3 of 4 (c) Find the probability that 10 or more of the flights were on time. The probability that 10 or more of the flights were on time in Part 4 of 4 (d) Would it be unusual for 11 or more of the flights to be on time? It (Choose one) w|pa unusual for 11 or more of the flights to be on time since the probability is X High blood pressure: A national survey reported that 35% of adults in a certain country have hypertension (high blood pressure). A sample of 25 adults is studied, Round the answers to four decimal places. Part 1 of 4 (a) what is the probability that exactly 5 of them have hypertension? The probability that exactly 5 of them have hypertension is X Part 2 of 4 (b) What is the probability that more than 8 have hypertension? The probability that more than 8 have hypertension is x 5 Part 3 of 4 (c) What is the probability that fewer than 4 have hypertension? The probability that fewer than 4 have hypertension is X Part 4 of 4 (d) Would it be unusual if more than S of them have hypertension? It (Choose one) w|be unusual if more than $ of them find have hypertension since the probability is X