In a factory, two-thirds of the floor area is taken up for the production line. out of the remaining floor area, three-fifths is taken up by official space. the rest is warehouse spacce. the warehouse space occupies 2000 square metre. workout the floor area of the production line.

After reading 80% of her e-mails in her inbox, danette still has m unread e-mails. which of the following expressions could represent the number of e-mails danette had in her inbox before she started reading? choose 2 answers: (choice a) 5m (choice b) 1.8m (choice c) 80m (choice d) m/0.8 (choice e) m/1−0.8