Respuesta :

Answer:

r ≥ 20

Step-by-step explanation:

r/3 - 9 ≥ - 2

r/3 ≥ 7

Multiply both sides by 3

r ≥ 21

Answer: Good deal

Step-by-step explanation:

r/3-9≥2

r ≥ 20

r/3 - 9 ≥ - 2

r/3 ≥ 7

3 r ≥ 20