The population of a village was 6400. if 3%population left the village and 5% died within a year what will be the population size a year after

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.

What is the factor form of x^2-9x+14

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2