Respuesta :

Answer:

$ 9

Step-by-step explanation:

Simple Interest = P.R.T / 100

P = Principal (Amount invested) =$30

R = Rate= 10%

T = Time = 3 years

Therefore, Simple Interest (I):

I = PRT/100

I = ($30 * 10 * 3 ) / 100

I = $900 / 100

I = $9

She will have a total of $9 in three years