The family trip to grandma's consists of both a train ride in a car ride the average speed of a train ride was 78 miles per hour and the average speed of a car ride was 50 miles per hour the entire trip lasted 7 hours write an expression for the total distance of the trip in miles

astronomers is your final answer! : )

believe it or not anna is correct good job anna give me a fist bump there u go gal

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya