answer the questions about the reading.
1.How long have credit cards been available
2.why was frank mcnamara embarrassed
3.what did mcmanara think was a silly restriction
4.what phrase was used to describe the use of credit card, in contrast to the phrase "paying in cash"
5.what show that the diner's club card was becoming a popular icon
6.what did the credit card reprensent to people who possessed one
7.how did the use of credit cards expand