jim can plant 8 trees in 18 hours. kinda can plant 8 trees in 9 hours. how long will it take him and linda working together to plant 8 trees?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Let event a = you roll an even number on the first cube.let event b = you roll a 6 on the second cube.are the events independent or dependent? why?