55-(55×0.18)=p
A discount is the percentage of the item minus the original price. Because you need to take 18% off of 55, you need to first convert 18% to a decimal. Do this by moving the decimal point two spots to the left:
18=0.18
Then, you must find out what 18% of 55 is. Do this by multiplying 0.18 by 55:
0.18×55=9.9
Then you must subtract 9.9 from the original 55:
55-9.9=45.1
To find the equation, you combine all of these steps into one equation:
55-(55×0.18)=p
You would then follow GEMDAS to solve the equation, if needed.
