Ordering Rational Numbers
0.32, 3/55 0.31

The $x$-intercepts of the parabola $y = x^2 + bx + c$ are $(-3,0)$ and $(5,0).$ find the equation of the parabola, and submit your answer in $y = ax^2 + bx + c$ form.

Ineed me i stuck and i don’t want to get it wrong

Find the area of the triangle shown 3 by 6