Alex is watching a movie on television. He notices that there are 9 1/4 minutes of commercials for every 1/2 hour of the movie.
What is the unit rate of minutes of commercials per one hour of the movie.

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Solve this problem! extra ! 3025/5.5 = a/90.75

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1