Suppose an investment of 10,000 doubles in value every 13 years. how much is the investment worth after 52 years? and after 65 years?

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

Which statement about the graph of y = 8(0.25)^2

Find two numbers if their ratio is 4: 7 and their difference is 123.