A family is comparing different car seats. One car seat is designed for a child up to and including 30 lb. Another car seat is designed for a child between 19lb and 35lb. A third car seat is designed for a child between 30lb and 85lb, inclusive. Model those ranges with compound inequalities. Which car seats are appropriate for a 34-lb child?

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.

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?

If you answer right ill give brainliest, : )