Question 1031972
14ft 3in x 9ft 3in 

convert to mm

14ft 3in  = (14*12)+3 =171 in

171*25.4 = 4343.4 mm

 x 9ft 3in = (9*12)+3 =111 in

111*25.4= 2819.4 mm

Area of garden / area of each slab = number of tiles

Number of slabs = (2819.4*4343.4 )/(450*450)

=2820 slabs