(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between $1100 and $1900. farms (Round to the nearest whole number as needed.) (b) If 29 additional farms were sampled, about how many of these additional farms would you expect to have land and building values between $1100 per acre and $1900 per acre? farms out of 29 (Round to the nearest whole number as needed.)