I’m using calculator for this but I still don’t know

Is it true or false i’m trying to pass this test so i can leave school

Which of the following is correct interpretation of the expression -4+13

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?