Solutions when y = 0 are the same as The graph below has__
solutions when y = 0

The axis of symmetry is x =___

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

How do i do this? i don’t understand

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10