Find the student’s error in solving the following inequality. 2 < –3x –4 < 5 6 < –3x < 5 –2 > x > –5/3 The student should have added 4 to all parts (left, middle, and right) to get 6 < –3x < 9. The student divided 6/–3 incorrectly. The student should not have switched the direction of the sign in the final step.

The graph shows a trend in an ecosystem over time caused by increased pollution in the region. what can you conclude from the graph? a. there’s lower biodiversity among birds. b. there’s a higher reproductive rate among birds. c. there’s a significant decline in the number of producers. d. other types of animals were unaffected by pollution.

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Blank is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound