Help pls If Z is the midpoint of RT what are x, RZ, and RT?

Aphrase is shown read the phrase and give me the answer

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

Which fraction represents the ratio 35 : 42 in simplest form