C^9 / 6c^4

please help and explain, thanks so much.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

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

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class