Hai công ty A và B cùng kinh doanh một mặt hàng. Xác suất để công ty A thua lỗ là 0,3; xác suất để công ty B thua lỗ là 0,2 và xác suất để hai công ty cùng thua lỗ là 0,1. Xác suất để công ty B không thua lỗ biết rằng công ty A thua lỗ là

Math it's appreciated. (picture provided)

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.