4a^2 - 8a = 24. I need help with this

The graph of the quadratic function shown on the left is y = –0.7(x + 3)(x – 4). the roots, or zeros, of the function are . determine the solutions to the related equation 0 = –0.7(x + 3)(x – 4). the solutions to the equation are x =

Simplify the expression. -2/5(10+15m-20n)

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)