Describe TWO things that happened in the 1980s and 1990s which helped or led to helping the hole in the ozone layer and ONE thing that you can do today to help the ozone layer. Be specific and detailed.

On february 3, smart company sold merchandise in the amount of $5,800 to truman company, with credit terms of 2/10, n/30. the cost of the items sold is $4,000. smart uses the perpetual inventory system and the gross method. truman pays the invoice on february 8, and takes the appropriate discount. the journal entry that smart makes on february 8 is:

mark, a civil engineer, entered into a contract with david. as per the contract, mark agreed to design and build a house for david for a specified fee. mark provided david with an estimation of the total cost and the contract was mutually agreed upon. however, during construction, when mark increased the price due to a miscalculation on his part, david refused to pay the amount. this scenario is an example of a mistake.

Dozier company produced and sold 1,000 units during its first month of operations. it reported the following costs and expenses for the month: direct materials $ 69,000 direct labor $ 35,000 variable manufacturing overhead $ 15,000 fixed manufacturing overhead 28,000 total manufacturing overhead $ 43,000 variable selling expense $ 12,000 fixed selling expense 18,000 total selling expense $ 30,000 variable administrative expense $ 4,000 fixed administrative expense 25,000 total administrative expense $ 29,000 required: 1. with respect to cost classifications for preparing financial statements: a. what is the total product cost