In Watsonvill CA, a major producer of strawberries, reccords were kept on the relationship between the rainfall ( in inches) and the yield of strawberries (pounds per acre). The data for a 9 year period are as follows: Rain Fall x - 23.1, 21.4, 20.0, 24.1, 21.4, 17.9, 19.6, 20.2, 17.6 Yield y - 340.5, 244.2, 256.8, 230.4, 247.2, 280.9, 274.0, 254.0, 266.8. How many pounds of strawberries per acre can be predicted if it is expected that there will be 30 inches of rain?