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Comparisons of test scores usually demonstrate trends. Option A correct.

Information and Ideas questions ask about purpose. A date is usually included to mark a historical milestone. If the passage describes reforms beginning around 1920, then the year signals a turning point. Option A reflects this, while the others are either illogical or dismissive.

Information and Ideas questions ask you to identify central claims, supporting details, and logical relationships. A strong summary restates the passage’s thesis without adding or omitting essential points. If the passage presents evidence like increased access to fresh produce, more outdoor activity, and shared events that connect neighbors, the core claim is that such gardens benefit communities—socially and health-wise. Option B accurately condenses those ideas. Option A introduces cost and popularity as the focus, which would be a distortion unless the passage emphasizes them; most such passages highlight benefits over expense. Option C narrows the scope to schools, an unnecessary limitation unless the passage explicitly argues that school gardens are the only effective type. Option D adds an unsupported requirement (professional landscapers). To approach these items, scan topic sentences and conclusion sentences of paragraphs, and note repeated concepts. Combine them into a neutral, comprehensive statement. Avoid choices that are too narrow, too broad, or that smuggle in claims not in the text.

Factor: (x–5)(x+2)=0. Solutions: x=5, –2. Option B correct.

Check: 92+402=81+1600=16819^2 + 40^2 = 81 + 1600 = 1681. 412=168141^2 = 1681. They match, so it is a right triangle. Option A correct.