Can somebody pls answer these three questions plsASAP

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

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

Plz hurry evaluate the expression a+b where a=8 and b=19