Marianna had an average of 84.6 in social studies before her final exam. After the final exam, her average changed to 82.9.
Show how Marianna's average changed in social studies.

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

The difference between tax advoidance and tax evasion

Average acceleration: i have no idea how to do this.