Answer:
[tex]1\frac{5}{16}[/tex] pounds
Step-by-step explanation:
We are given,
Amount of yogurt in Sarah's cup = 14 oz
Amount of yogurt in her father's cup = [tex]\frac{14}{2}[/tex] = 7 oz
Thus, we get,
Total amount of yogurt bought by them = 14 + 7 = 21 oz
Since, 1 oz = 0.0625 pounds.
So, 21 pounds = 1.3125 pounds = [tex]1\frac{5}{16}[/tex] pounds
Hence, they bought [tex]1\frac{5}{16}[/tex] pounds on this visit.