It is C. George - Desmond is Desmond's score. And after you get their scores, you add them up to find the total.
1/2 ; you must look at rise over run. It goes up by one, runs over 2. 1/2 is a half
After Greg makes the pudding 1 time, it takes him

hours to make it.
After Greg makes the pudding 2 times, it takes him

hours to make it
After Greg makes the pudding 2 times, it takes him

hours to make it
so The function is

Answer: f of x equals 2 multiplied by 0.8 to the power of x