​ bob has 17/23 left of a wall to demolish. Each swing of the sledgehammer brings down an additional 17/161 of the wall. How many more swings will it take him to bring down all of the wall?

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

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any of them that add up to 180 degrees.

depends what are you allowed to do ?