Respuesta :

texaschic101

Answer:

Step-by-step explanation:

proportion time...

$6 to $ 20 = x$ to $ 90

 6         x

-----  = ------  cross multiply

20       90

(20)(x) = (6)(90)

20x = 540

x = 540/20

x = 27 <=== he saved $ 27 bucks

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