bridget is comparing the cost of a fresh lobster dinner at two different restaurants. the first restaurant charges $39 for the meal, plus $8 per kilogram for the lobster she picks. at the second restaurant, bridget would pay $9 per kilogram for the lobster, in addition to $37 for the meal. bridget realizes that, in theory, dinner at both restaurants could cost the same amount if the lobster had a certain weight. what is the weight? how much would bridget pay for her dinner?