Question 1: 5/8=0.625=62.5% 13/22=about 0.59(repeats 09)=9% 22/30=about 0.73(repeats 3)=73% 12/25=0.45=45% Store 3 had the greatest percentage of smart phones. Question 2: 0.775/7.75%=0.775/0.0775=10 For mobile phone 3, it uses o.775 hour of battery life if 7.75% of battery is used.
