I need help on this question asap please and thank you:)
A license plate in Canada consists of 4 numbers then 3 letters. Letters are chosen from a list of 23 acceptable letters that may be repeated. Roger wants the four digits to match the last four digits of his cell phone number, 4734, in the same order. Roger also wants the first letter on her license plate to be an R, which is an acceptable letter. Determine the number of license plates that satisfy these conditions.
Determine the number of distinguishable 5-letter arrangements using all the letters in the word CHOICES using permutation or combination symbols AND factorials
