Required information [The following information applies to the questions displayed below.] Phillips Company manufactures air-conditioning units for commercial buildings and has noticed considerable variation in shipping expenses from month to month as per the data below: Total Units Shipping Month Shipped Expense January 4 $2, 120 February $ 3 , 020 March $2 , 500 April $1 , 278 DO On W N UT ID May $2, 130 June $2 , 880 July $4, 128 4. What is the cost formula for shipping expenses? Y = XRequired information [The following information applies to the questions displayed below. ] Phillips Company manufactures airconditioning units for commercial buildings and has noticed considerable variation in shipping expenses from month to month as per the data below: Total Units Shipping Month Shipped Expense January 4 $2,120 February 4 $3,020 March 5 $2,500 April 2 $1,273 May 3 $2,130 June 6 $2,880 July 8 $4,128 5. If seven air conditioners are shipped in August, estimate the total shipping expenses. Total shipping expense _