Geologists have found that Earth's history is marked by several major events. What does the fossil record show took place around the same time Pangaea
formed? *
A. single-celled organisms evolved
B. explosion of new life forms
C. mass extinction
D. first animals lived on land

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

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain