Question:
In a tally chart, 5 students have red backpacks, and 7 have blue backpacks. If each tally mark represents 1 student, how many tally marks would represent the students who have red or blue backpacks?
In a tally chart, 5 students have red backpacks, and 7 have blue backpacks. If each tally mark represents 1 student, how many tally marks would represent the students who have red or blue backpacks?