0.983 to 1 significant figure?

The number of possible solutions of a polynomial can be found by looking

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.

If square root x = -7, then x= -49 true or false