My recommendation for this activity is to split the class up into groups of five students. Included in the activity is a link to the Google Doc handout, which splits the countries up into 5/6 countries/problems per student.

After all group members have completed their problems, ask students to compile the solutions into the DAB activity. From there, students will then be asked to convert their distances from the metric system to miles and compile all distances on a bar chart. Finally, the DAB concludes with a reflection question.

Student link (if you'd like to preview the activity): https://student.desmos.com?prepopulateCode=vcsnc

Teacher link (if you'd like to use the activity in your classroom): https://teacher.desmos.com/activitybuilder/custom/58dd6a77fe89f846df0416f3