Maths Question.

Please answer.

Awarding 10 points

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Which will form a composite function?