00 points!

which of these exponents don't belong? the problem is typed out below. i don't ask questions often so your effort will be greatly appreciated today. 100pts and a brainliest answer will be given to whoever has the most concise or clear and elaborate answer. you for your and have a blessed day.
q) which exponent doesn't belong? why? remember to include what your answer is, how you got that answer, why you chose the strategy you chose, and why your answer is correct. the more the better! * you once again.
1) positive base with positive exponent: 5^2
2) positive base with negative exponent: (5)^-2
3) negative base with positive exponent: (-5)^2
4) negative base with negative exponent: (-5)^-2

Mercury poisoning is dangerous overload of mercury within the body. a major source of mercury within the body, a major source of mercury poisoning is consuming fish that contain mercury. certain fish are more prone to having higher levels of mercury than others. the pie chart shows the distribution of four breeds of fish at a hatchery. the hatchery has approximately 6,000 fish. a biologist from the centers for disease control and prevention randomly test 5% of each breed of fish for mercury content. her findings are shown in the following table. based on the biologist's findings, if a single salmon is randomly selected from those that were tested, what is the probability that this particular fish would have a dangerous mercury level? a) 0.001 b) 0.004 c) 0.02 d) 0.08

What is the vertex form of f(x) = x2 + 6x + 3

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c