encuentre la ecuación de las gráficas mostradas usando los puntos de corte y el punto de evalúacion dado ​

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

According to the data set, where should the upper quartile line of the box plot be placed?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22