SOLUTION: I'm having trouble on my homework and can't figure out what r subtract seventeen greater than or equal to twenty one is please help

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Question 854917:

I'm having trouble on my homework and can't figure out what r subtract seventeen greater than or equal to twenty one is
please help
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
R-17>=21
R>=21+17
R>=38 ANS.