Within one !
mr. hackney wants to winterize his motorhome and need 40% antifreeze solution. how much pure antifreeze should he add to 30 liters of 20% antifreeze to make the 40% antifreeze

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.

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

Having a hard time understanding this question (see attachment).