Answer:
negative 5. or -5
Step-by-step explanation:
f(-1)= (-1)2-3
2 times -1= -2
-2-3= -5
f= -5
Answer:
it mean
Step-by-step explanation:
asap skekdkdke
i am joking
You're starting at 400. Each time you're cutting in half.
So the common ratio is 1/2 which means the equation is

which is in the geometric sequence format. So the answer is choice D
10 and -12
Step-by-step explanation:
10x-12=-120
it said it needed to be 20 characters long. so this is me making it that