Answer:
Weekly net pay is $36790
Weekly gross pay is  $41600
Step-by-step explanation:
Net pay  is the gross pay minus taxes
Net pay = gross pay - taxes
Gross pay =  hours worked * hourly rate
Net pay = hours worked * hourly rate - taxes
We know the  
hours worked = 40
Hourly rate = 20
tax rate = 185 bi weekly  = 185/2 = 92.5 weekly
Net pay = 40 * 20 - 92.5
Net pay = 800-92.5
Net pay = 707.5
This is the weekly net pay
Assuming we work 52 weeks a year 
Weekly net pay is 52* 707.5 = 36790
Weekly gross pay is  40*20 * 52 = 41600