How many 1/2 miles are in 24 miles corresponding multiplication expression

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Can someone me immediately, this is due by midnight! if you can't see the question, i'll text it to you. show the steps you took to get your answer.