Ravi is driving 440 miles to visit his grandma. he drives at a rate of 55 miles per hour. how many hours will it take him to get 34 of the way there?

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

Could you make it more clear?