Micaela and Totsakan each improved their yards by planting rose bushes and ivy. They bought their supplies from the same store. Micaela spent $33 on 3 rose bushes and 3 pots of ivy.
Totsakan spent 592 on 12 rose bushes and 4 pots of ivy. Find the cost of one rose bush and the
cost of one pot of ivy.

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.

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Give me the equations of two lines that have the same slope but are not parallel.