The sum of two numbers is 34. the smaller number is 6 less than the larger number. what are the numbers?

Extra points! find the missing dimension! need asap

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.

Rounded to the nearest tenth, what is the value of x