if chase has 4 times as many nickels as dimes and they have a combined value of 180 cents .how many of each coin does he have ?​

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

What is the value of x in the diagram below?

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.