In one shift, a certain disc jockey plays 11 rock songs, 17 jazz standards, and 7 disco tunes. What percent of the songs he plays are disco tunes? A. 7% B. 20% C. 31% D. 49% Provide an explanation :)

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20