1200×( 1- 18%- 10%-24%-36%),
= 1200× 12%,
= 144 (yuan).
A: The total expenditure in May was 1200 yuan, of which 144 yuan was used for medical treatment.
(1) What's the gold content of this dba who doesn't need the entrance examination? Is it approved by the state and filed by the Ministry of Education?<