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.
Nits are found firmly attached to the hair shaft about 1/4 inch from the scalp. They are oval and usually light colored or white, and take about a week to hatch into a baby louse called a nymph, then take about seven days to mature. Adult lice can live up to 30 days on a person's head, if the lice falls off a person, it dies within two days. The best defense, is a strong offense when dealing with these pests - the sooner the better. Search for head lice when hair is wet.