For the first problem, you can multiply each of their distance from school by the how far they are to get how much they walked. Randy would look like this:
[tex]6 \times \frac{2}{3} \\ \frac{6 \times 2}{3} \\ \frac{12}{3} \\ 4[/tex]
So he walks 4 miles. Sasha would look like:
[tex]7 \times \frac{4}{7} \\ 28 \div 7 \\ 4[/tex]
This means Sasha walks 4 miles as well.
Julie's would look like this:
[tex]8 \times \frac{1}{2} \\ \frac{8}{2} \\ 4[/tex]
Julie also walks 4 miles.
From this, we can see that C is the only correct statement.
As for the second, the number 3.444444... would be considered a real and rational number because you can make it a fraction sort of like 1/3 and 0.33333..., so it would be a rational number. A real number is any number that doesn't have a imaginary variable next to it, so it would also be real.