The volumes of two similar solids are 729 m3 and 125 m3. the surface area of the larger solid is 324 m2. what is the surface area of the smaller solid?
a) 56 m2
b) 100 m2
c) 500 m2
d) 200 m2

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