Write how you would use numbers to investigate each object

For the Octopus we can use the number to find the total number of limbs. We may also use numbers to find the swimming speed of the octopus.

For the second diagram given to us we can use numbers to find the volumes of the two containers and see if transferring any liquid from the first container to the second one will lead to spilling due to volume mismatch or not.

For the last diagram we can use numbers to find the height, width, breadth, in other words, dimensions of the scooter. We may also use numbers to find the speed of the scooter.

a = 11 : 4

b = 38

c = 1 for every 6