Named
The median amount that Bian saved each month is
$95
$105
$115
$150

$95

Explanation:

The median is obtained by sorting the data from lowest to highest and is the data that is right in the middle, in this case:

45

55

95      ←

150

210

95 is the number right in the middle, so that's the median

1."lessen the worth of ."

2."increase the worth of."

3." beyond the worth of."

4."against the worth of ."