Generally, the more someone exercises the less they will weigh (while also maintaining a proper diet). john has started exercising and eating healthy and has recorded his weight each week. using a regression model, how much would you expect john to weigh at the end of week 8 if he continues with his new routine? (round your answer to the nearest tenth.) weekweight (lbs) 0222 1220 2217 3215 4213 5210 6206 7204 8?

a. 170.3
b. 173.7
c. 176.8
d. 179.4