It takes the seasoned circus performer 4 seconds to get a plate spinning on their head and it takes their apprentice nine seconds to do the same. working together, how many seconds will it take to get 52 plates spinning?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap