Which fraction represent the given fraction rewritten with their lcd? 1/3x-9y, 6/5x-15y a. 2/8x-21y , 12/8x-21y b. 5(x-3y)/15(x-3y) , 15(x-3y)^2 c. 5/15(x-3y) , 18/15(x-3y) d. 5/15x-135y , 18/15x-135y

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.

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents

What is the value of x in the this question ?