Algebrahelp
posted by Deborah .
Jordan decides to start a garden care service. He plans to charge $20 for the first hour and $10 for each additional hour that he spends working on a garden. He works 5 days a week and takes care of one different garden each day. How many hours will he need to work if he wants to earn at least $250 a week?
Write an inequality for the total number of hours he needs to work. Solve the inequality and check your answer.
I know it $20(5)+ $10(3 hrs)= $250.
I don't think this is completely right...please help

$20(5)+ $10h > $250
100 + 10h > 250
10h > 150
h > 150/10
h >= 15 
Thank you so much Ms.Sue  just couldn't quite get it right...

Thank you Ms. Sue

You're welcome, Brendon/Deborah.
Please use just one name for your posts. 
Sorry that was my brother  thinking he was funny