Answer:
63
Step-by-step explanation:
9(7+9) = 63 +81
Hi your answer is 144 i don't how i got but it is 144
-10.25
A. less than three batteries were used in five hours.
This is your answer ☺️☺️☺️
If a, b and c are in arithmetic progression, that means that a + c = 2b. So a + b, a + c and b + c are also in arithmetic progression.
This might help.
