PLEASE HELP U WILL MOST LIKELY UNDERSTAND please

6. 19in to feet
7. 840in to cm
8. 4.22g/cm to lbs./ft
9. 32 ft/sec to meters/min

PLEASE HELP U WILL MOST LIKELY UNDERSTAND please 6 19in to feet 7 840in to cm 8 422gcm to lbsft 9 32 ftsec to metersmin class=