Lets look at the number. 76.78. In each of the different place holders the number is higher than 5. Lets do some examples. 74 rounded to the nearest whole number is going to be 70. 76 rounded to the whole number will be 80. The .78 in your question also contributes.
Answer: 80
80 not the nearest whole number the nearest whole number is the nex number up or down rounded so u would take .78 thats higher than .50 so u would round up so when u round up u go to 77 u don round 76 up to 80 u only round only .78 up to make 76 77
