On my way to smash your mother xxx :) ​

What is the value of x when x + 7 = 21?

Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32

Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71 with a standard deviation of $0.10. using chebyshev's theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.41 and $4.01? round your answer to one decimal place.