Paula is a peach grower in central Georgia and wants to expand her peach orchard, there are 30 trees per acre and the average yield per tree is 600 peaches. Data from the local agricultural experiment station indicates that if Paula wants to plant more than 30 trees per acre, while the trees are in production, the average yield of 600 peaches per tree will be decreased by 12 peaches for each tree over 30. She needs to decide how many trees to plant in the new section of the orchard

A. Is this relationship linear or nonlinear explain your reasoning

B. If Paula plant six more trees per acre, what will be the average yield in peaches per tree? What is the average yield in peaches per tree if she plants 42 trees per acre