Rewrite each expression in the shortest way possible. (7x to the power of 8)(3x to the power of 7). 2a to he power of 3 multiplied by 6a to the power of 4. 10z to the power of 6 / 5z to the power of 2. 15x to the power of 5/ 10x to the power of 8

Really need on these. i have no idea what to do

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%

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k