Put operations and try to reach the target number. You do not have to use all 6 numbers. (+, ×, ÷, -)

Due at 18/03/21. Answers required urgently. Thanks...​

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Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal