Solve. Show your work. Staying at a Motel 5 The cost of staying at a motel is directly proportional to the number of nights you stay. The graph shows the cost of staying at a motel, y dollars, for x nights. 400 350- a) Find the constant of proportionality. What does this value represent in this situation? 300 A 250 Cost ($) 200 b) How much does it cost to stay at the motel for one week? 1-50 1160 50 0 3 5 Number of Nights​

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.

Can (3,5 and square root 34) be sides on a right triangle?

Solve 2x+y=3 x+y=5 in substitution method