The graph of f(x) = 2x*2 + x – 15 passes through the point (0, –15) and one of its zeros is x = 2.5. What is the other zero of the function?

x =

4+6x-3x^3 in standard form with explanations because i don’t understand

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.