Answer=
D
Step-by-step explanation
because of the dot/line at the top of the number it means it is a continuous same number
for example, 0.3 with a dot/line on top means it is 0.333333...
so 0.55...+0.33...=0.88...
and as it is a decimal that is in the range of 1-100 its like a percentage so it is 88/100
If you decrease number by 50% of that number you are basically dividing with 2 hence the answer is 15.
The bets answer that could go into 81 and 16 would be 1
1 on top of the 3 ... you put the one on top and the 3 on the bottom and its one third
