I NEED HELP WITH THIS LAST AND FINAL QUESTION FOR MY SEMESTER WILL GIVE BRANLIEST!I NEED HELP WITH THIS LAST AND FINAL QUESTION FOR MY SEMESTER WILL GIVE BRANLIEST!

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.

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12