The answer and explanation to question 1

Answer:
20, 31, 33, 35, 55, 57, 58, 59, 72, 73, 79, 86, 87, 88
Step-by-step explanation:
The data set is split by digit. So 2|0 becomes 20. 5|5 becomes 55. Using this method, the data set is
20, 31, 33, 35, 55, 57, 58, 59, 72, 73, 79, 86, 87, 88