Max bought tools costing 75 he made a $30 down payment and plans to pay off the rest of the money and five monthly installments how much will maxes monthly payment be

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?