What is b less than 9 in algebraic expression

What is the 12th term of b(n)=-4-2(n-1)

Which shows how to solve the equation 3/4x=6 for x in one step?

Will make ! for correct answer the dot plot below shows the number of toys 21 shops sold in an hour.is the median or the mean a better center for this data and why? a. median; because the data is not symmetric and there are outliersb. median; because the data is symmetric and there are no outliersc. mean; because the data is symmetric and there are no outliersd. mean; because the data is skewed and there are outliers