The lions won 16 games last year. this year the lions won 20 games. what is the percent increase in the number of games the lions won from last year to this year?

a) 20%
b) 25%
c)80%
d)125%

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours