Determine what fraction is the correct label for the mark halfway between of the marked values on the number line.
Write the fraction as percent and as a decimal. (also please provide an explanation)

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?