Decide if each statement about the expression is true or false. 4(-2b + 5) and 2(-4b + 10) are equivalent expressions.

-9h - 4.5 and -0.7(12h - 4.5) are equivalent expressions.

-7(k - 2 + 3k - 4) and 28k - 42 are equivalent expressions.

18(48m + 24) and 6m + 3 are equivalent expressions.

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:

Which statement about 6x2 + 7x – 10 is true?

Ablueberry plant produces about 26 blueberries per day. if the farmer picked 472 blueberries, how many days did the plants produce blueberries?