Approximately 15 percent of the residents of a large city have seen a certain play. A marketing research will randomly select residents until one is found who has seen the play. What is the expected number of residents the researcher will need to ask to find someone who has seen the play?.

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b.they can have a lower impact on the environment. c.they can be used up rapidly. d.they can contribute to global warming.

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.

Students who utilize the" read, underline and eliminate" strategy are more likely to get better test grades. why do you think this is so