Yes the internet is left to to clipboard

**Answer:**

A scientific calculator costs $3.50 today. I remember when they cost about $75. What is the percent decrease in the price of a scientific calculator?

In other words: The decrease in price is what percent of the original price?

% Decrease= (Decrease in price(New price-Old Price))/(Original Price(old price))×100

$900

Explanation

First, you would need to find the area of the carpet which would be length x width, equaling to 400 ft., then you’d multiply the area of the carpet (400ft) by the cost for each square foot (2.25) leaving you with the total, $900

For this case we can make the following rule of three:

$ 9 ---------------> 100%

x -----------------> 110%

From here, we must clear the value of x:

We have then:

**Answer:**

**$ 9 plus 10% increase results in:**
I believe that the answer is x>-1