Laura and Martin obtain a 20-year, $100,000 conventional mortgage at 9.5% on a house selling for $120,000. Their monthly mortgage payment, including principal and interest, is $933.00. Determine the total amount they will pay for their house, and how much of a cost will be interest?

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

I’m not sure i’m sorry