Answer:
B
Step-by-step explanation:
A geometric sequence has a common ratio r between consecutive terms
r =
=
= ...
= 2
= 2
= 2
There is a common ratio of 2 between consecutive terms.
Hence sequence is geometric → B
6 + 2(x)2
6 + 2(3)2
=6 + 6(2)
=6 + 12
=18
Let x = # of 25-cent stamps
y = # of 2-cent stamps
{ x+ y = 88
{ 0.25x + 0.02y = 15.56
60 25-cent stamps 28 2-cent stamps
The

row is filled by just plugging in the corresponding values of

and

into the ODE.
For example, when

and

, you have

and so on.