Tuen Mun Government Secondary School

(a) (b) (c) (d) (e) (3(2x ( 1) ( 3x (f) The selling prices of a postcard and a stamp are $6 and $1.4 respectively. Mandy paid $95 for 2x postcards and 5x stamps. Find the total number of stamps. In a party, the number of adults is 6 more than 9 times that of children. The total number of people there is 66. ................
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