Kojo wants to be an author. To improve his writing skills, every day after school he writes 3 pages of a story he is
working on. Kojo has been writing his story for d days. He has a total of 81 pages completed.
Write an equation to describe this situation.

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Name two numbers whos difference is -3

1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?