Which is a pair of vertical angles? VRU and ZSRT TRS and ZVRW TRV and ZWRU WRV and ZSRW​

Which of the following vectors are orthogonal to (2,1)? check all that apply

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

Ratio of circumference to diameter example plz i need to now what it looks like.