Find the difference of irrational expression

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

This is so hard and it’s for a test