Answer:
18 plus 20% of 18 is equal to 21.6
Explanation:
The equation is 18+20/100 * 18: our original 18, which takes care of 18+, and then 20%, which is 20/100, multiplied by 18, which takes care of the whole equation, 18+20/100 * 18.
We can simplify 20/100 to 1/5 and that multiplied by 18 is equal to 3.6
3.6 plus our original 18 is equal to 21.6.