Answer:
2.16 inches
Explanation:
1.2 feet = 12 inches + 20%(12) = 14.4 inches
14.4 inches x 15% = 2.16 inches
* the .2 in 1.2 can be represented by 20% because to get to the next whole integer, you would need to add .8
* you would multiple 20% by 12 because there are 12 inches in a foot
(I doubt this explanation made sense. sorry.)