A)A state's license plates consist of three letters followed by three numerals, and 248 letter arrangements are not allowed. How many plates can the state issue?
B)Evaluate the expression.
3Pr
C)Evaluate the expression.
5
2
D)Evaluate the expression.
9 5 4
6 2 1
E)Decide whether you would use a permutation, a combination, or neither. Next, write the solution using permutation notation or combination notation, if possible, and, finally, answer the question.
A club with 30 members is to select five officers (president, vice president, secretary, treasurer, and historian). In how many ways can this be done?