Trundle wheels are used to measure distances along the ground.
the radius of the trundle wheel is 20 cm.
jim wants to work out the distance between two junctions on a road.
he rolls the trundle wheel between the two junctions.
the trundle wheel rotates exactly 34 times.
work out the distance between the two junctions.
give your answer in metres correct to the nearest metre.

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

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.

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?