The current temperature in Smalltown is 17 °F. This is 7 degrees less than twice the temperature that it was six hours ago. What was the temperature in
Smalltown six hours ago?

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 inverse of the function f(x) = 2x + 1?

Find the midpoint m of z1=(8+5i) and z2=(12+3i)