Answer:
First blank from left in step 1 =

Second blank in step 1 = 14.4
First blank from left in step 2 = 14.4
second blank from left in step 2 =

third blank in step 2 = 4
Explanation:
STEP 1 :-
4.5h ×
miles per hour = 14.4 miles
STEP 2 :-
As the total miles will be same, so;
14.4 miles ÷
miles per hour = 4 hour