Use the substitution method to solve the system of equations. Enter your answer as an ordered pair. y = 2x + 1 y = 6x – 1

The dot plot below shows the number of toys 21 shops sold in an hour: dot plot labeled number of toys sold shows 6 dots over 0, 4 dots over 1, 3 dots over 2, 3 dots over 3, 2 dot over 4 and 3 dots over 9 is the median or the mean a better center for this data and why? median; because the data is not symmetric and there are outliers median; because the data is symmetric and there are no outliers mean; because the data is symmetric and there are no outliers mean; because the data is skewed and there are outliers