16 +28+32+4=80 80 total coins x.15 =12 coins sold
Answer: you minus the equations you have to get the equation that you want so it all can add up to that *
Step-by-step explanation:
The mean of the data plot is 7.25.
The mean of the data plot without the outlier is 4.333333333.
So the mean decreased by 2.916666666.
