BEY THERE.
GIVEN:- The actual price was $39. And it is reduced to 85%.
To prove :- After reducing the actual price.
SOLUTION:- Firstly we have to find 85% of $39
=> 39× 85/100
=> 39× 0.85
=> 33.15
Now the actual price after reducing is 39 - 33.15
=> 5.85
HOPE IT HELPED YOU.