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7. A parking lot has 40 parking spaces where each spot measures 18 feet long by 9 feet wide. What is the total parking area available?
A. 6, 480??2
B. 162??2
C. 1, 080??2
D. 1, 921 ??2
8. A teacher records the number of pages of assigned reading and the average time students spend completing the reading. Based on the data, the teacher notices that as the number of pages of assigned reading increases, the average time students spend completing the reading also increases. Explain the relationship between the two variables.
A. As the number of pages of assigned reading increases, the average time students spend completing the reading decreases.
B. As the number of pages of assigned reading decreases, the average time students spend completing the reading increases.
C. As the number of pages of assigned reading increases, the average time students spend completing the reading also increases.
D. There is no relationship between the number of pages of assigned reading and the average time students spend completing the reading.
9. A researcher collects data on the number of hours high school students spend watching television each week and the students’ grade point averages (GPAs). The data show that as the number of hours spent watching television increases, the students’ GPAs tend to decrease.
What is the correlation between the number of hours spent watching television and the students’ GPAs?
A.Positive correlation
B.Negative correlation
C.No correlation
D.Cannot be determined
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