ok, so it seems you might have hard time dividing fractions
remember
(a/b)/(c/d)=(a/b)(d/c)=(ad)/(bc)
1. miles per hour
2/3 miles per 10 minutes
60 minute per mile
10/60=1/6
2/3 miles per 1/6 hour
(2/3)/(1/6)=(2/3)(6/1)=12/3=4
A is answer
2.
cost per pound is cost/poounds
cost=9
pounds=1 and 1/4=5/4
9/(5/4)=(9/1)/(5/4)=(9/1)(4/5)=36/5=7.20
D is asnwer