Please explain and show all work.

We wish to improve yearling weight (YW) in our cow herd. Calculate: hz for YW = -35 0 Overall selection intensity herd mean for Yw = 875 lb 0 Response to selection % saved (males) = 2 0 Generation interval for: % saved (females) = 10 0 Males Standard deviation for YW = 80 lb 0 Females 0 Overall a Response peryear Assume we keep our cows for 8 calf crops starting at 2 years of age and we use our bulls for 5 calf crops starting at 2 years of age