9. Resolver los siguientes ejercicios sobre operaciones combinadas de números racionales. a. \( (12 \times 3.4)+(5.67: 3)(-8.3)+5 / 2 \) b. \( (1.29+15.24):(-0.45+3.35) \)

To paint a house, a painting company charges a flat rate of \( \$ 500 \) for supplies, plus \( \$ 50 \) for each hour of labor. a. How much would the painting company charge to paint a house that needs 20 hours of labor? A house that needs 50 hours?

Eric walks 2.75 miles to and from work everyday for an entire year. How many miles did he walk?

Eric walks 2.75 miles to and from work everyday for an entire year. How many miles did he walk?

4. Which list is ordered from least to greatest? \( \frac{1}{9}, \frac{3}{9}, \frac{7}{9} \) \( \frac{7}{9}, \frac{1}{9}, \frac{3}{9} \) \( \frac{3}{9}, \frac{7}{9}, \frac{1}{9} \) \( \frac{7}{9}, \frac{3}{9}, \frac{1}{9} \)

2rrange the three numbers hown from least to greatest. \[ \frac{2}{5}, \frac{6}{10}, \frac{2}{9} \]