(3x^4)-5=43

How??

It's supposed to be - 2?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

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

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.