<h3>
Answer:</h3>
The first one is arithmetic, the second one is geometric, the third one is neither, the fourth one is geometric, the last one is arithmetic.
<h3>
Step-by-step explanation:</h3>
The first question goes up by a rate of -100 each time, so its arithmetic.
The second one goes up by a rate of *5 each time, so its geometric.
The third one is inconsistent so it is neither.
The fourth one goes by a factor of *-6 each time, so its geometric.
The last one goes up by a rate of -10 each time, so its arithmetic.
