the rule of supply and demand says that.

as price increases demand decreases
as demands decreases price increases
as demand increases price increase with price
supply and demand both increase with price.

1. "As price increases, demand decreases": This is often referred to as the law of demand. It states that when the price of a good or service goes up, consumers will generally buy less of it.

2. "As demand decreases, price increases": This is an inverse relationship between demand and price. When there is a decrease in demand for a product, sellers may lower the price in order to attract more buyers.

3. "As demand increases, price increases": This statement is not in line with the rule of supply and demand. According to the general rule, an increase in demand usually leads to an increase in both price and quantity supplied.

4. "Supply and demand both increase with price": This statement is also not accurate. The relationship between supply and price is typically inverse - as price increases, sellers are motivated to supply more of a good or service. However, an increase in demand may lead to an increase in price and quantity supplied.