Answer:
a) We need to collect $800,000, but as uncollectible property taxes ar 3% of the levy we need to collect
800,000/(97%)=$824,742.27
Which should be collected from the value of all properties less that with exemptions. That is

Government
Homestead
Veterans
Old age, etc.
___________
million
The tax rate would be
that is $22.91 per $1,000 of assessed valuations.
b) $100,000*0.02291= $2,291