楂旂⿳閲嶉噺鏀惰不(f猫i)锛�楂旂⿳閲嶉噺鏀惰不(f猫i)锛堢編閲戯級= 锛堥珨绌嶉噸閲忊�斿闅涢噸閲忥級X $1/纾�
渚嬪: 鍖呰９瀵﹂殯閲嶉噺5纾咃紱
楂旂⿳閲嶉噺=闀�12" x 瀵�8" x 楂�10"/166 = 5.78纾�
楂旂⿳閲嶉噺瓒呭嚭瀵﹂殯閲嶉噺0.78纾�
*瀵﹂殯閬�(y霉n)璨�(f猫i)=$5/纾� x 5纾� + 0.78纾� x $1/纾� = $25.78
鏅�氫欢鍏嶆敹2鍊嶄互鍏�(n猫i)鐨勯珨绌嶈不(f猫i)銆�
鐗规畩楂旂⿳鍖呰９锛氬鍖呰９灏哄浠讳綍涓�閭婇暦瓒呭嚭48"鏈冪敘(ch菐n)鐢熶竴瀹氱殑闄勫姞璨�(f猫i)銆�
2023骞�4鏈�1鏃ヨ捣鍩�(zh铆)琛�