Atruck drove at an average rate of 45 miles per hour on the highway and 20 miles per hour once it entered the city. if it took the trip, which was 100 miles, in 3 hours, how much of it was in the city?

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.