Answer:
c. 20 baskets per hour
Step-by-step explanation:
In this context, "per" can be considered to mean "divided by." Then to find the unit rate in terms of baskets per hour, we compute ...
rate = (baskets)/(hours) = (60 baskets)/(3 hours) = (60/3) baskets/hour
rate = 20 baskets/hour . . . . matches choice C
