TrAmp Inc. recorded the following data for last six months activities: Month . Transportation costs ($). No. of deliveries made Jan 8600...... 797 Feb 8430...... 770 Mar 8210...... 721 Apr 8690...... 760 May 8760...... 810 Jun .. 8530...... 779 Using the high-low method, the companys (a) variable transportation cost per delivery (2 decimal places) is $

(b) fixed transportation cost per month is $

(c) If the company makes 838 deliveries in July, the expected transportation cost will be $