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.
Nymphs and fully mature adults can survive for only about a day without a food source. Adult lice canât live past 24 hours or so on non-human surfaces such as carpets, hardwood flooring, clothing, furniture, sports helmets, headphones, or hair accessories.onât Worry. Getting rid of a case of head lice can be time-consuming and tedious, but itâs not a health hazard. Lice donât carry disease and donât harm the head or scalp. Prevent head lice by not sharing combs, hairbrushes, hair accessories, towels, bedding, hats, or scarves with a person infected with the parasite.