Can you walk me through on how to do this

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Complete the synthetic division problem below.what is the quotient in polynomial form 2/16 -16