The sales of homes in a new development have been increasing. in january, 8 homes were sold, in february, 12 homes were sold. in march, 16 homes were sold. this pattern continued for the remainder of the year. what is the explicit rule that can be used to find the number of homes sold in the nth month of the year? an=4n−4 an=−4n−4 an=4n+4 an=−4n+4

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain