For two months, Martin used the same snow removal company to help clear his property. The company had a fixed reservation rate per month, plus an hourly rate for the amount of time that is spent clearing
snow. Martin received two bills from the snow removal company. The first bill was $170 for 4 hours of
snow removal and the second bill was $220 for 6 hours of snow removal. Find the equation of the line
that represents the snow removal company's fixed reservation rate and charge per hour. Round to the nearest cent if necessary.