Wanna ask how to do q.17 thanks.

9.58 1B Chapter 9 Level 2 17. The price of a newspaper is 20% lower than the price of a magazine. By what percentage is the price of the magazine higher than the price of the newspaper? DSE 18. In a school of 800 students, 45% of them are boys. It is known that 30% of the boys wear glasses and 40% of the girls wear glasses. (a) Find the number of the boys who wear glasses. (b) Find the percentage of the students who wear glasses. 19. There are 1125 men in a group. The number of men is 80% higher t that of women. (a) Find the number of women in the group