2 years ago

NEED HELP ASAP PLS! 13 points!

Mathematics

1 answer:

atroni [7]2 years ago

7 0

Answer:

r≥21

Step-by-step explanation:

$\frac{r}{3} -9 \geq -2\\ \frac{r}{3} \geq 7\\r\geq 21$

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