I believe the range is the middle number so start from 63 then 46 then 53 then go back and forth until you get the middle number now after you get the middle number for the IQR add up both sides of the middle and / by the all the number on the left and right of the middle number
M = mass
So E = mc^2 is
Kinetic energy = mass * speed of light^2
Irma’s annual income has the delivery fees already taken out. earnings based on salary and commission is higher becuase fees have not been taken out