Answer:
(a)= option 3
(b)= option 3
Step-by-step explanation:
(A) It is given that a sequence is defined by the recursive function
and 
Now, substituting the value of n=2 in above equation,



Again putting n=3,



Putting n=4,



Putting n=5,



Putting n=6,



Putting n=7,



Hence, option 3 is correct.
(B) The given sequence is :
5, -10, 20, -40, 80.....
Since, the given sequence is GP, therefore
and r=-2
The nth term is given by:

For fifteenth term, put n=15 in above equation, we get

=
=
Hence, the fifteenth term is 81920.
Option 3 is correct.
The answer is c because it’s asking for less than so it goes left and the dot isn’t filled so it means less than
Answer:
Three sheets
Step-by-step explanation:
Even though he used less than an entire sheet of each color, he still used three sheets of paper to make the card.
Answer:
-14.5
Step-by-step explanation:
-14.5
Answer:
20/18
Step-by-step explanation: