9 An educational researcher found that they could calculate an equation to predict a university's graduation rate (expressed as a percent) from the average combined SAT score of the students they admitted to the university. The equation is below: y = -70.77+0.12*x A certain university had an average SAT score for entering students of 1100. Their actual graduation rate was 85%. Given this information calculate the residual value for the university's graduation rate. Enter the residual value rounded to two decimal places (do not truncate or round to a whole number for this question)