Can you please help? I'll give a like!

A particular telephone number is used to receive both voice calls and fax messages. Suppose that 20% of the incoming calls involve fax messages, and consider a sample of 20 incoming calls. (Round your answers to three decimal places.) Ia USE SALT (a) What is the probability that at most 8 of the calls involve a fax message? :I (b) What is the probability that exactly 8 of the calls involve a fax message? E (c) What is the probability that at least 8 of the calls involve a fax message? E (d) What is the probability that more than 8 of the calls involve a fax message? E