The number is 13.5
To determine the percentage of a number, we need to know that percentage is the ratio of a number with zero.
It is represented with the symbol, '%'
Now, from the information given, we have that;
75% of 18
This is represented as;
75/100 ×18
Multiply the numerators, we get;
1350/100
Now, divide the values, we get;
13.5
Thus, the number that is 75% of 18 is 13.5