7) through: (0.-5) and (-3, 4)

What value of x is in the solution set of –5x – 15 > 10 + 20x?

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.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2