Marrisa called her friend at 10: 15 am. they talk for 157 min. what time their conversation end?

Please express the following statements as equation of variation using k as constant: 1. the variable m varies inversely as the variable n2. the number of days,d,of work varies inversely as the number of workers,w.3. the volume v of gas at fixed temperature varies inversely as the pressure p.4. the pitch p of a tone varies inversely as the wavelength,w of the tone.5. the pressure,p,of the air pumped into a balloon varies inversely as the volume v.​