Answer: 0.1
Explanation:
10% as a decimal is 0.1
if you were to decrease something by 10 percent, such as a price, multiply the number by 0.1, then subtract the number.
Example:
$25 is 10% off
25*0.1=2.5
25 - 2.5 =22.5
When $25 is 10% off, then the price will be $22.50