Two equivalent expressions are shown below a(3x + 5) = 15x + b
what is the value of a?
what is the value of b?

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%

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

If the discriminant if a quadratic equation is 4 which statement describes the roots?