1.) Mary bought a dress for 550 pesos at 20% discount. What was the original price?

2.) Robin made a pattern using triangles and squares. The pattern has 5 triangles to every 12 squares. What is the ratio of the triangles to all the given figures?

3.) Sam went for fishing with the aim of catching 100 fishes as usual. But he could just catch 14 fishes, how many percentages of his aim/goal did he achieve?​

4.) the ratio of male pupils to female pupils in school is 7:9. If there is 126 female pupils, how many pupils are male?​