 
<translate> Sue ga na-akwọ ụgbọala ụbọchị 7 - 4 = ụbọchị 3 n'izu. Ya mere, ọ ga-akwụ 2100 * 3 / 7 = $ 900. Ya mere, azịza ikpeazụ bụ 900. <eng> Sue will drive 7 - 4 = 3 days a week. So she will pay 2100 * 3 / 7 = $900. So the final answer is 900. 