Answer:
A change in the expectations of consumers about prices - a shift of the demand curve for peanut butter
A decrease in the price of peanut butter - a movement along the demand curve for peanut butter
A decrease in the number of consumers - a shift of the demand curve for peanut butter
Explanation:
Only a change in price of a product would lead to a movement along the demand curve for that product. 
A decrease in the price of peanut butter would increase the quantity demanded for butter. This would lead to a movement down the demand curve. 
A change in the expectations of consumers about prices can shift demand curve either to the left or right.
A decrease in the number of consumers would shift the demand curve to the left.
I hope my answer helps you 
 
        
             
        
        
        
Answer:
D.
Explanation:
PERT and CPM are network planning techniques.
PERT means Program Evaluation and Review Technique.
CPM means Critical Path Method.
The six steps more common to PERT and CPM are:
-Define the project and identify each activity.
-Develop relationships among the activities.
-Draw the network connecting all of the activities.
-Adding time and/or cost estimates to each activity.
-Compute the longest time path through the network. This is called the critical path.
-Use the network to help plan, schedule, monitor and control the project.
 
        
             
        
        
        
Answer:
1. Requires substantial resources. 
2. produces different numbers than a traditional system.
3. Is costly to maintain. 
Explanation:
Activity-based costing (ABC) system is a method of accounting assigns the total cost of activities such as manufacturing overhead costs and indirect costs necessary to produce a product or provide a service. 
Basically, an activity-based costing (ABC) system is focused on the cost drivers associated with the respective activities, which are responsible for cost to be incurred. The cost drivers are activities such as direct labor, purchase order, machine use etc.
<em>Hence, an activity-based costing system requires substantial resources, produces different numbers than a traditional system and is costly to maintain.</em>