The production cost represented by y of a bluetooth device is equal to the product of labour costs represented by an and number of devices represented by x in addition to a constant equipment renting fee represented by Q the production cost represented by y of a bluetooth device is equal to the product of labour costs represented by a number of devices represented by x in addition to a constant equipment rental firm represented by Q write an equation to represent the production cost in terms of m x and Q change the subject formula and 1.1 to 1 the production costs represented by one of a bluetooth device is equal to the product of labour cost represented by M and number of devices represented by x in addition to a corset equipment running represented by cube write an equation to represent the production cost in terms of m x and Q change the subject formula in 1.1 1.21 m1.2.2q 1.23x