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the scores on a standardized test are normally distributed with a mean of 500 and a standard deviation of 100.
sofia scored 632 on the test.
what is the z score associated with sofia's score?
&
what percent of students scored below sofia?

How do the graphs of y = 1/x and y=5/x+6 compare?

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Find the missing factor. write your answer inexponential form.9^2=9^4×