b. The optional pricing strategy (O.P.)
More about optional pricing:
When a company uses optional product pricing, it sets a base product at a lower cost and additional, optional products at a higher price to make up for any losses. Optional products are not required for the base product to function, but they typically improve the customer experience.
The two key components of optional product pricing:
- A base product is the main draw for the customer or the reason they are purchasing. It meets the needs of the customer and does not require the optional product to function.
- A complimentary product(s): A product that a customer who purchased the base product is likely to purchase in order to improve their experience with the base product.
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Answer:
a) FIFO
Explanation:
 FIFO means first in, first out. It is an inventory system where the first purchased inventory is the first to be sold . The cost of goods sold is $30 which is equal to the price of the first purchased inventory . Therefore, the FIFO inventory system was used. 
LIFO means last in, first out. It is an inventory system where the last purchased inventory is the first to be sold. 
Weighted average is when the weighted price of inventory is used as the cost of goods sold. 
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The journal entry to replenish the petty cash account is credit to Cash for $266.
<h3>How would petty cash be replenished?</h3>
The amount that needs to be replenished is:
= Petty cash fund - cash 
= 298 - 32 
= $266
This amount needs to be taken from the cash account which is why the cash account will be credited with $266.
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Answer:
$2,000
Explanation:
Depreciation: The depreciation is a non-cash expense that shows a decrements in the value of the fixed assets due to tear and wear, obsolesce, usage, time period, etc. It is shown on the debit side of the income statement. 
The computation of the depreciation expense under the straight line method is shown below:
= (Original cost of milling machine - salvage value) ÷ (expected useful life)
= ($15,000 - $2,000) ÷ (7 years)
= ($14,000) ÷ (7 years)  
= $2,000
In this method, the depreciation is same for all the remaining useful life