Question 1193915
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If MT Heading is used for the heading, then, since the three fonts have to be different, there are 9 choices for the second font and 8 choices for the third; the total number of choices is 9*8=72.<br>
If MT Heading is not used for the heading, then it can't be used for either text or quotations.  So there are 9 choices for the header, then 8 choices for one of the others and 7 choices for the last; the total number of choices is 9*8*7=504.<br.
The total number of ways to choose the three fonts is 72+504=576.<br>