Hello I need help with the attached regression analysis problems. thank you for the help!

Regussion HW The following data pertain to the chlorine residual a swimming pool at various times after it has been treated w/ chemicals # of hours : 2 4 6 8 10 12 chlorine residual : 1.8 1. 5 1 . 4 1 . 1 1 .1 .9 1 ) Identity the explanatory + dependent variable . Draw a scatterplot 2 ) Describe the relationship blw the two variables 3) Determine The Pearson's linear correlation coefficient b/w X + y and interput the value 4) Fit a least squares line from which we can predict the avg . chlorine residual based on the # of hours since the pool has been treated w/ chemicals 5 ) Interpret the slope of the equasion live 6) Estimate the chlorine ussidual in the pool five hours after It has been treated wl chemicals