First find how much money Bill makes every week by multiplying his hourly rate by the number of hours he works each week: $25/hour * 30 hours/week = $<<25*30=750>>750/week
Then multiply that number by the number of weeks per month to find his monthly earnings: $750/week * 4 weeks/month = $<<750*4=3000>>3,000/month
Then multiply his monthly earnings by the number of months in a year to find his annual income: $3,000/month * 12 months/year = $<<3000*12=36000>>36,000/year.
This income means Bill gets a 50% monthly healthcare subsidy from the government. Multiply the cost of the premium by 50% to find the monthly cost Bill pays: $500/month * .5 = $<<500*.5=250>>250/month
Finally, multiply Bill's monthly cost by the number of months in a year to find his annual cost: $250/month * 12 months/year = $<<250*12=3000>>3,000/year
#### 3000