Wht is the solution of the system defined be y =-x+5 and 5x+2y=14

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.

If you apply the changes below to the linear parent function .f(x)=x what is the equation of the new function ? vertically stretch by a factor of 3 ; flip over the x axis

The result of which expression will best estimate the actual product of (-4/5) x (3/5) x (-6/7) x (5/6) (i need an expression not an answer)