Mr. Hammond is researching what it would cost to order flower arrangements for a fancy party. He wants one large centerpiece for the head table and smaller arrangements for smaller table florist $10 for each smaller arrangement plus $30 for the large centerpiece Diana’s flowers in contrast charges $40 for the large centerpiece and eight dollars for smaller arrangements if Mr. Hammond orders a certain number of small arrangements the cost would be the same at either flower shop. How many small arrangements would that be?