If angle b is (6x-5) then what is its supplement?

What is the value of x? enter your answer in the box. photo attached.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

What is the prime factorization of 23 ?me with this question