The sum of two numbers is 23.the larger number y is 1 less than twice the smaller number x. write and solve a system of linear equations

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?