Aggie is an australian exchange student in china, and she currently has 14,000 yuan in her bank account. if the exchange rate changes from 1 australian dollar = 6.21 chinese yuan to 1 australian dollar = 6.37 chinese yuan, what happens to the value in australian dollars of the money in aggie's bank account?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) 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 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?