Maybe you can buy the crumbs of felafel off of someone's shirt for a shekel, but generally, a shekel is too small of an amount of money to buy anything. It is barely worth more than a USD quarter and Israeli prices are roughly the same as US prices.
A bottle of soda or a bag of chips might cost between 3-7 shekels.
As a broad, rough approximation:
NIS20 has about the same purchasing power as US$5.00 has.
4 shekels 20 agorot
A regular letter from Israel to the United States is 5.60 shekels (about $1.5).
3000 shekels
No. In 1978, Israel had "Old" Israeli Shekels, not dollars. The "Old" Israeli Shekels only have value as a collectors item, not as a currency.
400 shekels of silver.
Israel
If you can't get Shekels Dollars is the best but it's best to convert it to Shekels right away. Alternatively you could use a foreign ATM card to withdraw Shekels.
As of July 2017, one dollar is 3.50 Israeli shekels. For each new date, you may check the exchange rate through the Related Link. Dollar-Shekel converter
72 Israeli shekels right for 21/10/11 from google But its mostly 3 or 4 shekels=1$
1 US dollar is worth 3.74 new Israel shekels
It's not steady, but about 260-450 shekels.
One box (20 ciggies) costs between 25 and 32 shekels, depending on the brand. The current shekel-dollar rate is 3.5 shekels per dollar (Oct. 16, 2017). Let me take this opportunity to encourage cessation of smoking.