x	1	2	11	16	26	36
y	43	54	78	100	150	200

x = 92, y = 625, x² = 2354, y² = 83,349, xy = 13,709, and r 0.9945.

1. Findx, andy. Then find the equation of the least-squares line=a+bx. (Round your answers to four decimal places.)

2. The calves you want to buy are 21 weeks old. What does the least-squares line predict for a healthy weight? (Round your answer to two decimal places.)