While going to school, a student walks an average of 5 km/hr west for 12 blocks is this an example of Velocity or Speed​

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Answer this 30 points and brainliest!

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude