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Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

If 3x+8=3x+8 is it one solution or no solution

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle