The slope is -2. In context to this problem, the candle will burn away 2cm of its length every hour.
Answer:

Step-by-step explanation:
Given


Required
Determine the percentage of the shaded cubes
First, we calculate the number of boxes:

Express as multiplication


This implies that there are 20 cubes in the box.
The percentage of the shaded cubes is:





<em>30% were shaded</em>
I really don’t know I’m just answering questions that I know sorry