Your job is to sort and sack marbles for sale. a bag contains 55 marbles, some red and some green. if there are 11 red marbles, what is the ratio of red to green marbles?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.