A shipping company calculates costs as follows. If a package weighs more than 10 pounds, the base shipping fee is $25. I f t h e ba ses hi pp in g f ee i s$ 25, an "expedited" option is available for an additional charge. If the "expedited" option is chosen, the total cost is increased by 40% of the base fee. The standard shipping time for any package is 5 business days.

A customer ships a package that weighs 15 pounds and chooses the "expedited" option. Which of the following must be true about the customer's shipment?

The total shipping cost is $35, an d t h e p a c ka g e w i ll a rr i v e in 3 b u s in ess d a ys .$

The total shipping cost is $35.$

The shipping time is less than 5 business days.

The base shipping fee is $25, b u tt h e t o t a l cos t c ann o t b e d e t er min e d .$