If x ≠ 0, for which of the following sets of numbers is the average (arithmetic mean) equal to the median?
The figure above shows a playground with Its dimensions given In meters. What is the area, In square meters, on the playground?
Consider all positive integers a, 6, and c such that 135 is a factor of each of the expressions 15a, 254, and 30c. What is the greatest common factor of all possible sums. a+b+c?