Please help I begging u

Write a similarity statement for the similar triangles. afgh ~ a

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

What decimal is equivalent to -3 1/8? -3.12 -3.18 -3.1205 -3.125