What body system, respiratory system

Circulatory system

Digestive system

Nervous system

Affects ulcer disease and heartburn.

Please do this quick it is due please. I will make brainlest and give out extra points

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%

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)