2x+5+2x+3x in One sloution, and no solution.

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.

15/16 as a decimal rounded to the nearest hundredth

If sin(x) = 0 and cos(x) = 1, what is tan(x)?