I need to know this asap pleasee

$45

Step-by-step explanation:

Let the regular price be x

according to the question

the equation is

x×85/100=38.25

x×85/100=38.25

x=38.25×100/85

x=38.25×20/17

x=45

-- Start a list.
-- At the beginning of the list, write zero. 
-- Next on the list, write ' 1 '.
-- Now you have the beginning of the Fibonacci series.
-- Whenever you want to add a new term to the list, sum up
     the last two terms on the list.  Their sum is the new term.