A civil engineer has a choice of two plans for renting furniture for her new office. Under plan​ A, she pays ​$1225plus ​$175 per​ month, while under plan​ B, she pays ​$250 plus ​$250 per month. Write the two equations that show the total cost y of renting furniture for x months. For what number of months do the two plans cost the​ same? What is that amount of​ money?