# Problem of the Week Problem B Wall Construction

Moyo wants to build a wall in her backyard. She will build the wall out of bricks, and her measurements show that each brick is $$22.5\,$$cm long and $$5.7\,$$cm high. Moyo’s bricks on the bottom layer of the wall are to be placed lengthwise and spaced $$4.5\,$$cm apart. For example, here is the bottom layer of a wall with three bricks.

1. If she builds a wall with nine layers of bricks, what will the height of the wall be?

2. If Moyo builds a wall with six bricks on the bottom layer, how long will this bottom layer be?

3. If Moyo wanted the wall to be $$130.5 \,$$cm long, how many bricks will Moyo use in the bottom layer of the wall?

Theme: Geometry