Can somone pls help me .. will mark u brainliest !

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

The bottom of ignacio's desktop is 74.5cm from the floor. ignacio's 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