Solve the system by graphing -3x-y=-10. 4x-4y=8 answers to choose from are: ,3) b.(3,-1) c.(1,3) d.(3,1)

Will make ! for correct answer the dot plot below shows the number of toys 21 shops sold in an hour.is the median or the mean a better center for this data and why? a. median; because the data is not symmetric and there are outliersb. median; because the data is symmetric and there are no outliersc. mean; because the data is symmetric and there are no outliersd. mean; because the data is skewed and there are outliers