Question 795231
A)If Sam bought 21 pounds of sugar for 21 dollars
then, he got 21 pounds/21 dollars = 1 pound of
sugar per dollar.
B) If it takes a 52 pounds of seeds to plant an 
8-acre field, then,8 acres/ 52 pounds
= 0.15 of an acre can be planted per pound of seed.
Hope this helps.
:-)