Increase.
1/4 can be translated to 25%
1/2 can be translated to 50%
25% to 50% is an increase.
My Answer for your question is
A. O
Hope this picture helps!
<span>The 2.7 has been broken into 2 and 0.7, and then both of these parts have been multiplied by 3, giving you the two answers of 6 and 2.1 shown. Adding these two together gives you the answer of 8.1. </span>