Jar B has 20% more marbles than jar A. What
percent of the marbles in
jar B have to be moved
to jar A in order that the
number of marbles in each
jar will be the same?

Consider a normal distribution of frog weights with u = 500 grams and o = 65 grams. a sample of size 2,000 is drawn from this population. approximately how many of the 2,000 cases would you expect to find between 435 and 565?

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.

Jerrold has to buy 12 copies of a textbook which costs $36.25 per copy. how much must he spend for them?