what particle is emitted when lead-214, 214 82pb undergoes natural radioactive decay to bismuth-214, 214 83bi?

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

Rawls says that justice sometimes requires the sacrifice of things like freedom of speech for the sake of greater economic equality. true or false

Which labels do x and y represent? x: scattered bundles y: multiples of four or five x: scattered bundles y: multiples of three x: bundles in a ring y: multiples of four or five x: bundles in a ring y: multiples of three