At a certain company, 64.5% of the employees have engineering degrees.
To express the percentage as a decimal we need to remove the % symbol.
To remove % symbol we always divide by 100
When we divide by 100 we move the decimal point two places to the left.

The decimal vale of 64.5% is 0.645
If your solving for B then its B<43/3
If i read this correctly then the answer would be
57-12= 45
45/9= 5
The answer is 5