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Math·Algebra·Linear inequalities in one or two variables

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For which of the following tables are all the values of $r$ and their corresponding values of $g$ solutions to the inequality $r+g<40$?

A

$r=0,g=39$; $r=2,g=37$; $r=4,g=35$

B

$r=0,g=37$; $r=2,g=39$; $r=4,g=35$

C

$r=0,g=35$; $r=2,g=39$; $r=4,g=37$

D

$r=0,g=35$; $r=2,g=37$; $r=4,g=39$