A scientist planted seeds in $4$ sections of soil for an experiment. Not all of the seeds grew into plants. After $20$ days, the scientist counted the number of plants in each of the $4$ sections. The results are shown in the table. Use the data in the table to determine approximately how many plants grew per square foot. Explain or show how you determined your approximation. Let $y$ be the number of plants expected to grow in $x$ square feet. Write an equation the scientist could use to model the relationship between $y$ and $x$ . Provide your approximation, explanation, and equation in the space provided.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?