Answer:
21) on how.many kilometres can Dave's father travel.in 2 2/6 hrs.
22)54kph and 2 2/6 hrs.
23) multiplication, addition and division
24) 54 divided by 6 is 9*2 is 18, 54*2 is 108 and 108+18 is 126 therefore the answer is 126
25) 126
correct me.if im wrong