How do i solve the system of equations x^2 +y=0 and x^2+y=0? i have to use substitution

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Do you mind if you guys me with this question i’m on number 8