13. which is an irrational number?
a 45 b 9
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The diagram shows a cuboid abcdefgh abcd is a square with area 25cm². find the volume of the cuboid.

You draw a card at random from a deck that contains 33 black cards and 77 red cards.

The diameter of a bacteria colony that doubles every hour is represented by the graph below. what is the diameter of the bacteria after 8 hours? graph of a curve passing through the points zero comma 1, one comma two, two comma four, and three comma eight