According to a zoologist's study, the equation yˆ=0.1651x+149.5738 models the weight of a baby giraffe, in pounds, during the giraffe's first 1000 days, where x is the number of days since birth.

According to this regression equation, what is the approximate weight of a baby giraffe 425 days after birth?

about 70 lb
about 105 lb
about 215 lb
about 220 lb