I have to solve to p but I need help with this I don't understand

kn + mp = q

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

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.