Which function could be a stretch of the exponential decay function shown on the graph? f(x)=2(6)x, f(x)=1/2(6)x, f(x)=2(1/2), and f(x)=1/2(1,6)x

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)

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?