Waitress receiveef a tip of 12% of a $375 food bill. how much money in tips did she earn?

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.

Melody received $140 at the end of a certain week. how many customers did she advise that week?

Devaughn's age is three times sydney's age. the sum of their ages is 96. what is sydney's age?