(a) Compute two lines of regression from the following data: r = 0.68, x = 68, y = 52, Sx = 5.12, Sy = 5.6

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.