Its a math 307 about the differential equation could you help me solve this problem with good formatting

8.+ -/4 pointsMy NotesThe rate at which a quantity of a radioactive substance decays is proportional to the quantity of the substance. The constant of proportionality 1 is called the decay constant or decay rate. Write the initial value problem that describes the amount N(t) of the radioactive substance remaining aftertime t, if the initial quantity N(0) is 3.dNN(0) =What is the solution to the initial value problem?The half life of the substance is the time thaif at which exactly half of the substance remains. What is the half life in terms of A?thalf =symbolic formatting help