22. a tara paid $145 for a course on
becoming a notary public. she paid
$21 to the state of texas for a
license, and $30 for an official seal
and record book. find the change in
the amount of money she has.
b. by law, tara can only charge $6 for
every signature she notarizes. at that
rate, how many signatures does she
have to notarize to break even with
her expenses?