Question

how many total have an mp3 player? 100 70 13 57

Explanation:

Step1: Identify relevant values

Values are \(70\) and \(57\) (assuming these are the counts for having an MP3 player).

Step2: Calculate total

Add the two values: \(70 + 57\).
$$70+57=(70 + 50)+7=120 + 7=127$$

Answer:

\(127\)