2/10 x 2/10 = 4/10 that can be a expression sorry if im wrong
Abcdefghijklmnopqrstuvwxy and z now which letter(s) did I repeat ?
She would have rented it for 9 hours because you do 81 minus 9 for the kayak charge that with equal 72 then you divide 72 by 8 for the hourly charge and that will equal 9