Amy negotiated the sale of her property to Carrie. After the contract was signed, Amy and Carrie also orally agree that Amy would pay to clear a large tree from the front yard. Later, Amy refuses to remove the tree and Carrie sues her. Under the parol evidence rule:

Adamson company manufactures four lines of garden tools. as a result of an activity analysis, the accounting department has identified eight activity cost pools. each of the product lines is produced in large batches, with the whole plant devoted to one product at a time. classify each of the following activities or costs as either unit-level, batch-level, product-level, or facility-level. activities (a) machining parts. (b) product design. (c) plant maintenance. (d) machine setup. (e) assembling parts. (f) purchasing raw materials. (g) property taxes. (h) painting.