When sophia solved her equation, she got x=7, but when she plugged 7 back into the equation, she got 3=9. What does this tell Sophia?Be clear and complete.

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two