The only solution of the equation x2 + bx + 16 = 0 is x = 4. What is the value of b?

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

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm