Place parentheses in each equation order of operations

6n^2-7n-75=0 solve by quadratic formula

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

Could someone me with this question i’ve been stuck on it for 20 minutes