i don't know about making 100$ in ONE hour but here are some suggestions that i have tried and became successful in :
i did a bake sale (buy ingredients that are cheat. Make some chocolate fudge or something like that)
lemonade
dogsitting
baby sitting
dog walking
chores around neighborhood
(do all fo theese and youll probaly have 300$$$$$$$$$$$$$$$$$$
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ask your parents its neighborhood by the way
One third of 300 dollars is calculated by dividing 300 by 3. This equals 100 dollars. Therefore, one third of 300 dollars is 100 dollars.
One hundred dollars
$51.00 Fifty-One Dollars and no/100--- or Fifty-One Dollars and 00/100 to write it out next to amount.
15 of 100 dollars is 15 dollars or 15%.