Answer:
B. Open to the right
Step-by-step explanation:
X cannot be -9 so the dot has to be open
X is greater than -9 so x can be anywhere from -8 to 1,999,999,999 or even greater
F(29) fits the 3rd set, so replace x with 29 and solve.
2(29-20)+ 30 = 18+30 = 48
The answer is 48
