Fiona kept track of how many text messages she sent each day one week, the numbers were 21,57,32,25,33,42 and 46 on average how many text messages did she send daily

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Can someone me out here and the tell me the greatest common factor