Work out the equation of the line which has a gradient of 1/2 and passes through the point (2,-5)

Joanie watched 1 out of three of a movie in the morning

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?

Ablue whale traveled 3112 miles in 214hours. what was the whale's rate in yards per hour? (1 mile = 1,760 yards)