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Kun is trying to save enough money to buy a new tablet device for $240 He is
working to save the money. His work and earnings for last month are shown below
Babysitting
jobs last month: 10.5 hours at $12 per hour
Lawn mowing last month: 4 lawns mowed at $15 per lawn
Kun's neighbor offered to pay him $9 per hour for helping with some housework.
How many hours would Kun need to do
housework to earn enough money to buy
the tablet?