b) Angela drove 212 km. Her speed was 42 km/h for about 20 min, then about 95 km/h for most of the trip, and finally about 55 km/h for the last 12 min. How long did the trip take

Alarger number is double the sum of a smaller number. the larger number is 2 less than 3 times the smaller number. if y represents the larger number and x represents the smaller number, which equations model the situation