The following table shows the number of snow days each school district in Trene County had last winter. School district District 201 District 211 District 221 District 231 District 241 Number of snow days 4 8 3 6 ? If the mean of the data set is 5 snow days, find the number of snow days in District 241.​

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old