A student wanted to dissolve 2.5mg of Taurine in a 10g of water. Instead he mixed in 2.5mg what is the percentage difference?

Which expression will have the same sum as 3_8 + 1/4?

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

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