2^4-1 so 2•2•2•2=16 and 16-1 is 15
30 & 150. 150 is five times 30, and 150+30=180
Figure how much percent she reads daily. Then add on till 7 until ur done... For example 7= 35% 14(days)= 70
No one ton is 1200lbs so 2 tons is 2400lbs so 1500lbs<2400lbs.
