The saving amount is $3,240.
The money left after tax is
[tex]= $45000\times (1 - 0.28)\\\\= 45000 \times 0.72[/tex]
=$32400
At 59.5, money left after tax is
[tex]=$45000\times (1 - 0.10)\times (1-0.28)\\\\= 45000\times 0.90\times 0.72[/tex]
=$29160
So,
Saving money should be
= $32,400 - $29,160
= $3,240
Learn more: brainly.com/question/17429689