The length of a line is y centimetres.

Write down an expression, in terms of y, for the length of the line in millimetres.

Please explain how you got your answer

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?