please only answer problems 7 and 9. Please show all work and formulas. thank you!

7. The transportation planner at ABC noticed the following shipments coming from the manufac- turer for a popular TV over the next 4 days. Order # 10002 10005 10006 10009 Ship date 5/21/20XX 5/22/20XX 5/23/20XX 5/24/20XX Weight (lbs) 7,200 12,000 8,000 13,000 Rate (cwt) US$3.00 US$4.00 US$3.00 US$4.00 Cost US$210.00 US$480.00 US$240.00 US$520.00 After conferring with the shipper, the planner found that shipments exceeding 35,000 lbs. received a rate of US$2.00 cwt. How much money could the planner save the organization if the four shipments were consolidated into a single vehicle (44,000 lbs. max capacity for one 40-ft trailer)? The traffic planner at ABC Electronics must calculate the ton-miles for a delivery. If the shipment weights 700 t and is to be delivered to a destination 1,200 miles away, what is the total ton-miles? The traffic planner must determine the cost for a rush shipment of a popular electronics product. The price for the standard lot size by motor carrier is US$850 and it takes 6 days for delivery. An alternative is to use air transport. The cost to transport the same lot size is US$2,100 and it takes one day for total transport time. The carrying cost for in-transit inventory for the item is US$150.00. What would be the difference in cost to expedite the shipment by air transport? 9