Answer:
400 x however long those ribbons are
Step-by-step explanation:
1 meter is 100 centimeters, and there are four rolls. so 4x100 equals 400, and you multiply that by the length that you didn't provide.
Answer: 
Step-by-step explanation:
The slope of the line is

Using the point (-2, 0) to substitute into point-slope form, we get the equation to be 