Problem $6$: Write the MOST equation for the task: "Following a sanding operation, an operator standing at his work bench picks up a brush $($located within reach$)$ and brushes the dust from his six square foot work table. He then lays the brush aside on the work table." Problem $7$: Write the MOST equation for the task: I "A worker slides a ruler $($within reach$)$ and pushes it $20$ feet and aligns it with two points that are $3$ inches apart. After placing the ruler, the worker returns to her original position.""