Find the domain and range of the function, f(x)=sin|x|

Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?