I understand 1 & 2, but don't understand questions 3, 4 & 5

Suppose that Alice and Bob are using the RSA cryptosystem to send a message. Bob selects p=3 and q=11. 1) What is the value of N ? 2) What is the value of ? 3) If e is chosen to be 7 , what is d? DsJl/learn.zybooks.com/2ybook/TREVECCAITI2540MyattSpring2023/chapter/1/peint 4) If Bob receives ciphertext c=25, then what was Alice's plaintext m? Use the value of d from the last. question. (You will probably need a calculator for this question.) 5) If the plaintext m=2, then what is the ciphertext c