As an isotope of lead, 201Pb, has a half life of5.2 hours. How many hours ago was there 25% more of the substance? Round your answer to 2 decimal places.

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

answer for #1 is c

answer for #2 is d

can i get brainliest

answer: your correct answer is b. d.

step-by-step explanation:

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.