PLEASE HELP. WILL GIVE BRAINLIEST AND WORTH 60 POINTS. Solve each equation using substitution. Answers are on the right and questions are on the left.

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

In what form is the following linear equation written y=9x+2

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?