The value \( V \) (in dollars) of a vehicle depends on the miles \( x \) that it has been driven. This is given in the formula \( V=22,000- \) \( 0.25 x \). After one year, the value of a vehicle is between \( \$ 12,000 \) and \( \$ 15,000 \). Which range of miles driven corresponds to this range of values based on the given formula? 19,000 \( \leq x \leq 22,000 \) \( 30,000 \leq x \leq 40,000 \) \( 28,000 \leq x \leq 40,000 \) \( 18,000 \leq x \leq 19,000 \)

13. As one proceeds from left to right across a given period on the Periodic Table the electronegativities of the elements generally (A) decrease; (B) increase; (C) remain the same. 14. As one proceeds from fluorineto astatine in Group 7A the electronegativity (A) decreases and the atomic radius increases; (B) decreases and the atomic radius decreases; (C) increases and the atomic radius decreases; (D) increases and the atomic radius increases. 15. An atom of fluorine is smaller than an atom of oxygen. One possible explanation is that, compared with oxy gen, fluorine has (A) a smaller oxidation number; (B) a smaller atomic number; (C) a greater nuclear charge; (D) more unpaired electrons. 16. In Period 3, as the atomic numbers increase, the pattern according to which the properties of the elements change is (A) metal - metalloid - nonmetal - noble

Find the midpoint between the two points \[ \begin{array}{l}\text { أوجد نقطة المنتصف بين النقطتين }(6,-4) \\ (-2,-4) \text { and }\end{array} \]

A. Mustrates whether the two ratios are equal or not using cross the products Write your answer on the sttached activity sheet \( \begin{array}{ll}1 \frac{3}{27}, \frac{1}{9} & \text { 2. } \frac{4}{9}, \frac{2}{3}\end{array} \)

2) \( y=\frac{2}{3} x-\frac{1}{7} \)

3 \( 6 b-5 b+3 b \)