Plz explain.
kayla is playing with blocks.
each block is a prism.
the cross section of the prism is a right angled triangle.
kayla uses 5 of the blocks to make a house.
the volume of the house is 9990cm³.
work out the length, l cm, of each block.

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?