The amount of a radioactive isotope decays in half every year. the amount of the isotope can be modeled by f(x)=346(1/2)^x and f(1)=173 what does the 1/2 represent

Answer this question! 30 points and brainliest! only if you know the answer.

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%