How do you solve geometry problems?

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.

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?