Answer:
180
Step-by-step explanation:
Since we need .2 more to get the whole number, and .2 is a quarter of .8, we can divide 136 by 4, which is 44. So now we can add 44 to 136, and we have the whole number, which is 180. To check the answer, we can multiply 0.8 * 180, and we get 136, so the answer is correct.