This is the 2017 MTAP Grade 8 Math Challenge questions 26 to 30. Questions 1-25 including can be found **here**. The pdf can be downloaded **here**. Solutions and answer will be posted later.

26.) Perform the indicated operations and simplify:

27.) What is the difference between the mean and the median of 2, 3, 3, 4, 6, 7, 8, 15?

28.) The surface area of a cube is 50% more than its volume. Find the total length of the edges of the cube.

29.) What is the slope of the line with y-intercept 6 and x-intercept ?

30.) If the standard deviation of a set of 20 numbers is 0, what is its range?

31.) A date is randomly chosen from the month of February 2017. What is the probability that the date chosen is a prime number greater than 10?

32.) Solve for . Continue reading