A chimney is to be built with bricks and it must be 4 metres high. Each layer of bricks in the chimney is 8 centimetres high and 52 bricks are used to make one layer.
a) How many bricks would the bricklayer need to make this chimney?
b) If each brick cost $1.25, what is the cost of all the bricks?

Help, please​

12cm

the answer is d

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

do you have a picture of the table