Answer:
-7
Step-by-step explanation:
To find the common difference, take the second term and subtract the first term
-2 - 5 = -7
Check by subtracting the second term from the third term
-9 - (-2) = -9+2 = -7
The common difference is -7
The answer should be 16√5
Maybe you meant solve for x?
If so, the answer is 4
Answer:
400
Step-by-step explanation:
800-400=400