Respuesta :

tramserran

Answer: $54.00

Step-by-step explanation:

I = Prt

I is interest earned: unknown

P is the principal (amount you invested): 50

r is the rate: 9% = 0.09

t is the length of time: 12

I = 50(0.09)(12)

   = 50(1.08)

    = 54.00