Cyndi noticed that the temperature at 3:00 pm was 72LaTeX: ^\circ∘ and the temperature at 11:00 pm was 48LaTeX: ^\circ∘ after the cold front came through. What real number represents the average change in temperature per hour? LaTeX: -2.6^\circ− 2.6 ∘

LaTeX: -3.4^\circ− 3.4 ∘

LaTeX: -3^\circ− 3 ∘

LaTeX: -24^\circ

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.

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

Ihonestly have no clue if it's each or none.