Help me with these. Thank you!

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Asap (i need to finish this quick) graph complete the sequence of transformations that produces △x'y'z' from △xyz. a clockwise rotation ° about the origin followed by a translation units to the right and 6 units down produces δx'y'z' from δxyz.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)