A student evaluated -4+x for x = -9 1/2and got an answer of 5 1/2? What might th student have done wrong.

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

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.

According to the data set, where should the upper quartile line of the box plot be placed?