Given that f(x) is even and g(x) is odd, determine whether each function is even, odd, or neither. (fog)(x)=

(gog)(x) =

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.