A scientist has 50 grams of a radioactive element. The amount of radioactive element remaining after t days can be determined using the equation mc013-1. Jpg. After two days the scientist receives a second shipment of 50 grams of the same element. The equation used to represent the amount of shipment 2 remaining after t days is mc013-2. Jpg. Which of the following is an equivalent form of the expression for the amount remaining in shipment 2?.