PROFIT AND LOSS AND BALANCE SHEETS 6.3 P 214 Cost of sales is: Value of stock at start of time period + Value of stock bought in this period = Total stock available to be sold-Value of stock left at end of period = Cost of sales for the time period For every single bit of goods or services you supply to others, there will be costs to pay
Head lice can survive on a human host for approximately 30 days. They generally cannot survive longer than 24 hours off the host. A female louse lays 3-5 eggs a day. The eggs hatch in 7-10 days and it takes another 7-10 day for the louse to mature and lay their own eggs.
The hair could also be combed over paper, or a bowl of water, so that any lice that results of any lice that were removed which could be seen. Facts About Lice. Head Lice are small about 1/32 to 1/16 inch in size. They can grow to almost an 1/8 inch, in some cases and have a lifespan of around 20 days.