What does "CAESAR" become with a shift of F$?2)$ What key do we need to make "CAESAR" become $""?3)$ What key do we need to make "CIPHER" become "SYEXUH"? Above we saw that "CAESAR" becomes $"$RPTHPG$"$ using a key P$.4)$ Can you find a key that will turn IRPTHPG" back into "CAESAR'? $-5)$ Use a key N to shift "CAESAR". What key is needed to shift back?. $6)$ What do you notice? Is this true for all texts? $7)$ How can we find the decryption key from the encryption key $/0\mathrm{.}5\backslash$times $4/0\mathrm{.}5\backslash$times $5/0\mathrm{.}5$x$2^/0\mathrm{.}5$x$2->113\mathrm{.}513\mathrm{.}51213131212/1$x$211$ Question VI: $/51)$ Use the key "CODE" to encrypt the sentence $"$TO BE OR NOT TO BE$".$ Some of the ciphertext is already completed for you: Plaintext Ciphertext Key CODECODECODEC TOBEORNOTTOBE