Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or
decrease per unit of x, to the nearest tenth of a percent.
y = 500(1/2)^x/11

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i