7. The number of Delicious apples sold is represented by <em>n</em>. Because they sold 162 more Empire apples than Delicious apples, the number of Empire apples sold can be represented by (<em>n </em> + 162). The total number of apples sold was 424, so the equation is Delicious apples + Empire apples = 424.
8. The equation is given for this problem. Simply solve for <em>h</em> in the equation.
9. The term "at least" generally means greater than or equal to. Thus, since Suzy scored at least 18 points, she scored 18 or more points.