Respuesta :

Answer:

7 hours APPOX

Step-by-step explanation:

Step one:

given data

Rachel drives an average of 50 miles per hour on a trip

speed= 50 mph

distance= 345 miles

Step two:

speed=distance/time

time= distance/speed

time= 345/50

time= 6.9 hours

time= 7 hours APPOX