Expanding brackets when cubed eg
(x - 5)3 answer given is xcubed -15xsquared + 75x -125 how do i work this? i can do two brackets but having trouble with the three brackets.

Yao xin puts 3/10 liters of potting soil in each pot for planting flowers. she has 5 2\3 liters of potting soil. how many pots can yao xin fill?

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below: