Answer:
Tom invested 35.8% of$400000 = $143,200
Explanation:
100%-35.4%-28.8%= 35.8%
Multiply 35.8 % (0.358) x $400,000 = $143,200.
Check work:
400,000 x 35.4% = $141,600
400,000x 28.8% = $115,200
Add all of the totals together:
141,600 + 115,200 + 143,200 = $400,000