1) X-y=-5 Y=- 3/4x-9

2) x+y=-1 x+y=-2

3)2x-3y=12 7x+3y=15

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