Aline t has the equation 5x-y-4=0. write down the equation of a line which passes through (1,-3), a) which is parallel to t, b) which is perpendicular to t

Terry runs a snowplowing business.income from snowplowing is giving by the function.f(x)35.5x+6 where f(x) is the income in dollars and x is the snowfall in inches received during a winter.if during the years 2006 to 2011,terrys town received 53,42,55,63,58 and 47 inches of snowfall.what was his income (in dollars) during those years