What is the cost of 20 kilograms of flour if 30 kilograms cost $ 72 and the unit price for each package of flour is the same? (write your answer using the $ sign. Sample $4) * 20 points

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

Find the roots of the equation below. x^2 - 6 + 9 = 0

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3