Respuesta :

kmyamccaster

Answer:

c = 9

Step-by-step explanation:

first, simplify 30/2c. which is 15/2c. then cross multiply. 15 x 12 = c x 20.

you get 180 = c x 20. swap sides, c x 20 = 180. divide both sides by 20, then simplify to get 9.

hope this helps.

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