PLS) Are these answers correct? 76 , 76 , 78 , 80 , 80 , 80 , 82 , 82 , 83 , 85 , 85 , 85 , 88 , 88 , 110

82 is the Median

83.867 is the mean

Yes, those answers are correct!
To find a median you’d want to find the middle value. Since there are 15 numbers here, you would look for the eighth, as there are seven on either side. If it were an even number, you would look for the two middle numbers, add them, and then divide that by two.
To find the mean, you want to add all the values and divide them by how many there are. So you’d solve for 76+76+78+80+80+80+82+82+83+85+85+85+88+88+110 and than divide the sum of that by 15, since there are 15 total values.