The amount of solids removed from a particular material when exposed to drying periods
of different lengths are as follows:
	x(hours)	y(grams)
	4.4	13.1
	4.5	9
	4.8	10.4
	5.5	13.8
	5.7	12.7
	5.9	9
	6.3	13.8
	6.9	16.4
	7.5	14.6
	7.8	18.3

Estimate the regression line.

1. Evaluate the amount of Y if X is 8.0 in 2 decimal places