Given the points a(-1,-3) and b(5,2). a. write the equation of the straight line ab. another line mn is parallel to ab and passes through the point (6,-2). b. write the equation of the straight line mn

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)