Answer:
you have to answer questions for that
Answer:
c for sureeee trust me its right
Answer:
Step-by-step explanation:
nth term = a + (n-1)d
9th term = 4 + 8 * 2
= 4 + 16
=20
Mean is 8
you have to add all the numbers and then divide it by the number of elements you have in this case 7
No she is not correct . 63 divided by 9 is 7 not 6
