 
<translate> Buru ụzọ chọpụta izu ole Casey ga-anọ: ọnwa 3 * izu 4 / ọnwa = izu 12. Mgbe ahụ mụbaa ọnụ ọgụgụ ahụ site n'ụgwọ a na-akwụ kwa izu iji chọpụta ego ole ọ ga-akwụ kwa izu: izu 12 * $280 / izu = $3360. Mgbe ahụ, mụbaa ọnụ ọgụgụ ọnwa ndị ọ nọrọ n'ebe ahụ site n'ụgwọ a na-akwụ ya kwa ọnwa iji chọpụta ego ole ọ na-akwụ kwa ọnwa: $1000 / ọnwa * ọnwa 3 = $3000. Mgbe ahụ, wepụ nọmba ahụ n'ọnụ ego nile ọ na-akwụ ma ọ bụrụ na ọ na-akwụ kwa izu iji chọta ego o chekwara: $3360 - $3000 = $360. Azịza ikpeazụ ya bụ: 360. <eng> First find the number of weeks Casey stays: 3 months * 4 weeks / month = 12 weeks. Then multiply that number by the weekly rate to find how much she would pay weekly: 12 weeks * $280 / week = $3360. Then multiply the number of months she stays by the monthly rate to find how much she pays monthly: $1000 / month * 3 months = $3000. Then subtract that number from the total amount she pays if she pays weekly to find her savings: $3360 - $3000 = $360. The final answer: 360. 