How the human society came into existence

Is british society today better than it was 400 years ago?

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

Hegyes was driving her car when it was negligently struck by a unjian enterprises truck. she was injured, and an implant was placed in her body to counteract the injuries. she sued unjian, and the case was settled. two years later hegyes became pregnant. the growing fetus pressed against the implant, making it necessary for her doctor to deliver the child 51 days prematurely by cesarean section. because of its premature birth, the child had a breathing handicap. suit was brought against unjian enterprises for the harm sustained by the child. was the defendant liable?