Given the function f(x) = the quantity of 4x minus 2, divided by 3, which of the below expressions is correct?

Which expression is equivalent to 3^3 + 2^2?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar