简答题
GRE
2012-10-13
Recording studio A charges$10,000 to make the first CD and$1.50 to makeeach additional CD.Recording studio B charges$6,000 to make the first CDand$2 for each additional CD.How many CDs would you need to order for the bills at the two studios to be the same?
参考答案
暂无
答案解析
E

