Question

I PROMISE I GIVE POINTS PLZ PLZ POINTS JUST ANSWER PLZ

Answer 1

2] y= 3x + 20

Divide both sides by 3 to simplify
y-20/3 =x

Switch sides
x= y-20/3.

For the first question, it is very confusing and you have to learn how to use the Quadratic formula.

 Here is a video if you want : https://www.khanacademy.org/math/algebra/quadratics/solving-quadratics-using-the-quadratic-formula/v...
​​​​​