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Simplify the expression 10/11(22z) + (a+5) -1

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

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.