Which of the following math statements contain variables check all that apply 11+x=19, 5-5=0, 34-6=28 , ? +8=19

The poll report includes a table titled, “americans using cash now versus five years ago, by age.” the age intervals are not equal. why do you think the gallup organization chose the age intervals of 23–34, 35–54, and 55+ to display these results?