Answer:
x^2-y^2
Step-by-step explanation:
took a quiz and got it right
He ANWSER I got would be c idk if this is right or not I honk it might be
Step-by-step explanation:
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
Answer:
4/9 is the answer
Hope it correct and it helps