A scientist has 50 grams of a radioactive element. The amount of radioactive element remaining after t days can be determined using the equation
f(0) - 50
(3)
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 R8) - 50
50l
. Which
of the following is an equivalent form of the expression for the amount remaining in shipment 2?