The half-life of Cs-137 is 30.2 years. If the initial mass of the sample is 1.00kg, how much will remain after 151 years?

What is the perimeter of square abcd? units units 28 units 37 units

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y

Suppose that the function f is defined. , for all real numbers, as follows. _ \ 1/4x² -4 if x≠ -2 f(x)=< /_-1 if x=-2 find f(-5), f(-2), and f(4)