PLZ help me im fairly confused with all of these please dont answer if your just going for the points and not really helping me i really need help find the radius of a circle with a circumference of 25x yards

find the radius of a circle with an area of 280.13 square inches

find the diameter of a circle with an area of 615.75 cm squared

find the diameter of a circle with an area of 90.25x m squared

find the area of a circle with a circumference of 26x feet

find the circumference of a circle with an area of 289x mm squared

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

How does the graph of y = 3x compare to the graph of y = 3-x?