Eighty students are going on a field trip to a history museum. the total cost includes 2 bus rentals and $10 per student for lunch. the daily bus rental is $960 per bus. what is the total cost per student?

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.